43490864976 has 80 divisors (see below), whose sum is σ = 121064126400. Its totient is φ = 13374028800.

The previous prime is 43490864969. The next prime is 43490864993. The reversal of 43490864976 is 67946809434.

It is a happy number.

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors.

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, 1104475 + ... + 1143173.

It is an arithmetic number, because the mean of its divisors is an integer number (1513301580).

Almost surely, 2^43490864976 is an apocalyptic number.

It is an amenable number.

43490864976 is an abundant number, since it is smaller than the sum of its proper divisors (77573261424).

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

43490864976 is a wasteful number, since it uses less digits than its factorization.

43490864976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40524 (or 40518 counting only the distinct ones).

The product of its (nonzero) digits is 31352832, while the sum is 60.

The spelling of 43490864976 in words is "forty-three billion, four hundred ninety million, eight hundred sixty-four thousand, nine hundred seventy-six".