77212322695 has 16 divisors (see below), whose sum is σ = 98132927328. Its totient is φ = 58119828480.

The previous prime is 77212322651. The next prime is 77212322711. The reversal of 77212322695 is 59622321277.

It is a de Polignac number, because none of the positive numbers 2^k-77212322695 is a prime.

It is a Duffinian number.

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, 176347 + ... + 430723.

It is an arithmetic number, because the mean of its divisors is an integer number (6133307958).

Almost surely, 2^77212322695 is an apocalyptic number.

77212322695 is a deficient number, since it is larger than the sum of its proper divisors (20920604633).

77212322695 is a wasteful number, since it uses less digits than its factorization.

77212322695 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257970.

The product of its digits is 635040, while the sum is 46.

The spelling of 77212322695 in words is "seventy-seven billion, two hundred twelve million, three hundred twenty-two thousand, six hundred ninety-five".