43097612640 has 96 divisors (see below), whose sum is σ = 137983106016. Its totient is φ = 11304284160.

The previous prime is 43097612633. The next prime is 43097612669. The reversal of 43097612640 is 4621679034.

It is a tau number, because it is divible by the number of its divisors (96).

It is a junction number, because it is equal to n+sod(n) for n = 43097612592 and 43097612601.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 706677 + ... + 765236.

It is an arithmetic number, because the mean of its divisors is an integer number (1437324021).

Almost surely, 2^43097612640 is an apocalyptic number.

43097612640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

43097612640 is an abundant number, since it is smaller than the sum of its proper divisors (94885493376).

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

43097612640 is a wasteful number, since it uses less digits than its factorization.

43097612640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1471992 (or 1471984 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 42.

The spelling of 43097612640 in words is "forty-three billion, ninety-seven million, six hundred twelve thousand, six hundred forty".