43247720880 has 1120 divisors, whose sum is σ = 192628920960. Its totient is φ = 8778792960.

The previous prime is 43247720837. The next prime is 43247720897. The reversal of 43247720880 is 8802774234.

43247720880 is a `hidden beast` number, since 432 + 4 + 7 + 7 + 208 + 8 + 0 = 666.

It is a super-2 number, since 2×43247720880² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 223 ways as a sum of consecutive naturals, for example, 153906340 + ... + 153906620.

It is an arithmetic number, because the mean of its divisors is an integer number (171990108).

Almost surely, 2^43247720880 is an apocalyptic number.

43247720880 is a gapful number since it is divisible by the number (40) 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 43247720880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96314460480).

43247720880 is an abundant number, since it is smaller than the sum of its proper divisors (149381200080).

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

43247720880 is a wasteful number, since it uses less digits than its factorization.

43247720880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361 (or 340 counting only the distinct ones).

The product of its (nonzero) digits is 602112, while the sum is 45.

The spelling of 43247720880 in words is "forty-three billion, two hundred forty-seven million, seven hundred twenty thousand, eight hundred eighty".