65402077674 has 16 divisors (see below), whose sum is σ = 131468138208. Its totient is φ = 21690028752.

The previous prime is 65402077661. The next prime is 65402077681. The reversal of 65402077674 is 47677020456.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27664672 + ... + 27667035.

It is an arithmetic number, because the mean of its divisors is an integer number (8216758638).

Almost surely, 2^65402077674 is an apocalyptic number.

65402077674 is an abundant number, since it is smaller than the sum of its proper divisors (66066060534).

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

65402077674 is a wasteful number, since it uses less digits than its factorization.

65402077674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55331909.

The product of its (nonzero) digits is 1975680, while the sum is 48.

The spelling of 65402077674 in words is "sixty-five billion, four hundred two million, seventy-seven thousand, six hundred seventy-four".