77975629495 has 16 divisors (see below), whose sum is σ = 99087958368. Its totient is φ = 58703334400.

The previous prime is 77975629483. The next prime is 77975629499. The reversal of 77975629495 is 59492657977.

It is a happy number.

It is not a de Polignac number, because 77975629495 - 2¹¹ = 77975627447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77975629499) 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, 636195 + ... + 748795.

It is an arithmetic number, because the mean of its divisors is an integer number (6192997398).

Almost surely, 2^77975629495 is an apocalyptic number.

77975629495 is a deficient number, since it is larger than the sum of its proper divisors (21112328873).

77975629495 is a wasteful number, since it uses less digits than its factorization.

77975629495 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120770.

The product of its digits is 300056400, while the sum is 70.

The spelling of 77975629495 in words is "seventy-seven billion, nine hundred seventy-five million, six hundred twenty-nine thousand, four hundred ninety-five".