77972416046 has 16 divisors (see below), whose sum is σ = 133670584320. Its totient is φ = 33415853400.

The previous prime is 77972416031. The next prime is 77972416063. The reversal of 77972416046 is 64061427977.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 962795 + ... + 1040633.

It is an arithmetic number, because the mean of its divisors is an integer number (8354411520).

Almost surely, 2^77972416046 is an apocalyptic number.

77972416046 is a deficient number, since it is larger than the sum of its proper divisors (55698168274).

77972416046 is a wasteful number, since it uses less digits than its factorization.

77972416046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149399.

The product of its (nonzero) digits is 3556224, while the sum is 53.

The spelling of 77972416046 in words is "seventy-seven billion, nine hundred seventy-two million, four hundred sixteen thousand, forty-six".