77665749495 has 16 divisors (see below), whose sum is σ = 124369389792. Its totient is φ = 41387002880.

The previous prime is 77665749479. The next prime is 77665749523. The reversal of 77665749495 is 59494756677.

It is not a de Polignac number, because 77665749495 - 2⁴ = 77665749479 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2152146 + ... + 2187935.

It is an arithmetic number, because the mean of its divisors is an integer number (7773086862).

Almost surely, 2^77665749495 is an apocalyptic number.

77665749495 is a deficient number, since it is larger than the sum of its proper divisors (46703640297).

77665749495 is a wasteful number, since it uses less digits than its factorization.

77665749495 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4341282.

The product of its digits is 400075200, while the sum is 69.

The spelling of 77665749495 in words is "seventy-seven billion, six hundred sixty-five million, seven hundred forty-nine thousand, four hundred ninety-five".