77954405974 has 8 divisors (see below), whose sum is σ = 116975297088. Its totient is φ = 38962640280.

The previous prime is 77954405939. The next prime is 77954405989. The reversal of 77954405974 is 47950445977.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7274662 + ... + 7285369.

It is an arithmetic number, because the mean of its divisors is an integer number (14621912136).

Almost surely, 2^77954405974 is an apocalyptic number.

77954405974 is a deficient number, since it is larger than the sum of its proper divisors (39020891114).

77954405974 is a wasteful number, since it uses less digits than its factorization.

77954405974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14562710.

The product of its (nonzero) digits is 44452800, while the sum is 61.

The spelling of 77954405974 in words is "seventy-seven billion, nine hundred fifty-four million, four hundred five thousand, nine hundred seventy-four".