77912448593 has 16 divisors (see below), whose sum is σ = 89357667840. Its totient is φ = 66546095616.

The previous prime is 77912448563. The next prime is 77912448599. The reversal of 77912448593 is 39584421977.

It is not a de Polignac number, because 77912448593 - 2⁶ = 77912448529 is a prime.

It is not an unprimeable number, because it can be changed into a prime (77912448599) 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, 11036921 + ... + 11043977.

It is an arithmetic number, because the mean of its divisors is an integer number (5584854240).

Almost surely, 2^77912448593 is an apocalyptic number.

It is an amenable number.

77912448593 is a deficient number, since it is larger than the sum of its proper divisors (11445219247).

77912448593 is a wasteful number, since it uses less digits than its factorization.

77912448593 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12416.

The product of its digits is 15240960, while the sum is 59.

The spelling of 77912448593 in words is "seventy-seven billion, nine hundred twelve million, four hundred forty-eight thousand, five hundred ninety-three".