43535418774672 has 320 divisors, whose sum is σ = 128303158072320. Its totient is φ = 12602606745600.

The previous prime is 43535418774623. The next prime is 43535418774691. The reversal of 43535418774672 is 27647781453534.

It is a happy number.

It is a super-3 number, since 3×43535418774672³ (a number of 42 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (66) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 934754778 + ... + 934801350.

It is an arithmetic number, because the mean of its divisors is an integer number (400947368976).

Almost surely, 2^{43535418774672} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43535418774672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64151579036160).

43535418774672 is an abundant number, since it is smaller than the sum of its proper divisors (84767739297648).

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

43535418774672 is a wasteful number, since it uses less digits than its factorization.

43535418774672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47502 (or 47496 counting only the distinct ones).

The product of its digits is 474163200, while the sum is 66.

The spelling of 43535418774672 in words is "forty-three trillion, five hundred thirty-five billion, four hundred eighteen million, seven hundred seventy-four thousand, six hundred seventy-two".