77967315895 has 16 divisors (see below), whose sum is σ = 106940167488. Its totient is φ = 53456520960.

The previous prime is 77967315851. The next prime is 77967315901. The reversal of 77967315895 is 59851376977.

It is a happy number.

It is not a de Polignac number, because 77967315895 - 2¹¹ = 77967313847 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 77967315895.

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, 146875 + ... + 421315.

It is an arithmetic number, because the mean of its divisors is an integer number (6683760468).

Almost surely, 2^77967315895 is an apocalyptic number.

77967315895 is a deficient number, since it is larger than the sum of its proper divisors (28972851593).

77967315895 is a wasteful number, since it uses less digits than its factorization.

77967315895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282570.

The product of its digits is 100018800, while the sum is 67.

The spelling of 77967315895 in words is "seventy-seven billion, nine hundred sixty-seven million, three hundred fifteen thousand, eight hundred ninety-five".