76691461809 has 16 divisors (see below), whose sum is σ = 106727110272. Its totient is φ = 48892808448.

The previous prime is 76691461793. The next prime is 76691461829. The reversal of 76691461809 is 90816419667.

It is not a de Polignac number, because 76691461809 - 2⁴ = 76691461793 is a prime.

It is not an unprimeable number, because it can be changed into a prime (76691461829) 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, 155167 + ... + 421259.

It is an arithmetic number, because the mean of its divisors is an integer number (6670444392).

Almost surely, 2^76691461809 is an apocalyptic number.

It is an amenable number.

76691461809 is a deficient number, since it is larger than the sum of its proper divisors (30035648463).

76691461809 is a wasteful number, since it uses less digits than its factorization.

76691461809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270296.

The product of its (nonzero) digits is 3919104, while the sum is 57.

The spelling of 76691461809 in words is "seventy-six billion, six hundred ninety-one million, four hundred sixty-one thousand, eight hundred nine".