76554331609 has 16 divisors (see below), whose sum is σ = 92957760000. Its totient is φ = 61758088512.

The previous prime is 76554331591. The next prime is 76554331613. The reversal of 76554331609 is 90613345567.

It is not a de Polignac number, because 76554331609 - 2⁷ = 76554331481 is a prime.

It is not an unprimeable number, because it can be changed into a prime (76554331699) 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, 1078609 + ... + 1147390.

It is an arithmetic number, because the mean of its divisors is an integer number (5809860000).

Almost surely, 2^76554331609 is an apocalyptic number.

It is an amenable number.

76554331609 is a deficient number, since it is larger than the sum of its proper divisors (16403428391).

76554331609 is an equidigital number, since it uses as much as digits as its factorization.

76554331609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2226057 (or 2226023 counting only the distinct ones).

The product of its (nonzero) digits is 2041200, while the sum is 49.

The spelling of 76554331609 in words is "seventy-six billion, five hundred fifty-four million, three hundred thirty-one thousand, six hundred nine".