43653808097172 has 216 divisors, whose sum is σ = 137102155968960. Its totient is φ = 11467220544000.

The previous prime is 43653808097147. The next prime is 43653808097183. The reversal of 43653808097172 is 27179080835634.

43653808097172 is a `hidden beast` number, since 4 + 3 + 6 + 5 + 380 + 80 + 9 + 7 + 172 = 666.

It is a super-2 number, since 2×43653808097172² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 8647704 + ... + 12731472.

It is an arithmetic number, because the mean of its divisors is an integer number (634732203560).

It is a 1-persistent number, because it is pandigital, but 2⋅43653808097172 = 87307616194344 is not.

Almost surely, 2^{43653808097172} is an apocalyptic number.

43653808097172 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43653808097172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68551077984480).

43653808097172 is an abundant number, since it is smaller than the sum of its proper divisors (93448347871788).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

43653808097172 is a wasteful number, since it uses less digits than its factorization.

43653808097172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4084063 (or 4084045 counting only the distinct ones).

The product of its (nonzero) digits is 60963840, while the sum is 63.

The spelling of 43653808097172 in words is "forty-three trillion, six hundred fifty-three billion, eight hundred eight million, ninety-seven thousand, one hundred seventy-two".