51677077615 has 16 divisors (see below), whose sum is σ = 65687254560. Its totient is φ = 38893818880.

The previous prime is 51677077577. The next prime is 51677077631.

It is a happy number.

51677077615 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 51677077615 - 2⁹ = 51677077103 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, 85395 + ... + 332635.

It is an arithmetic number, because the mean of its divisors is an integer number (4105453410).

Almost surely, 2^51677077615 is an apocalyptic number.

51677077615 is a deficient number, since it is larger than the sum of its proper divisors (14010176945).

51677077615 is a wasteful number, since it uses less digits than its factorization.

51677077615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249722.

The product of its (nonzero) digits is 2160900, while the sum is 52.

The spelling of 51677077615 in words is "fifty-one billion, six hundred seventy-seven million, seventy-seven thousand, six hundred fifteen".