76440232147 has 16 divisors (see below), whose sum is σ = 81365276160. Its totient is φ = 71609882112.

The previous prime is 76440232123. The next prime is 76440232321. The reversal of 76440232147 is 74123204467.

It is a cyclic number.

It is not a de Polignac number, because 76440232147 - 2¹¹ = 76440230099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (76440233147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 549978 + ... + 674800.

It is an arithmetic number, because the mean of its divisors is an integer number (5085329760).

Almost surely, 2^76440232147 is an apocalyptic number.

76440232147 is a deficient number, since it is larger than the sum of its proper divisors (4925044013).

76440232147 is a wasteful number, since it uses less digits than its factorization.

76440232147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125202.

The product of its (nonzero) digits is 225792, while the sum is 40.

The spelling of 76440232147 in words is "seventy-six billion, four hundred forty million, two hundred thirty-two thousand, one hundred forty-seven".