65139776751 has 96 divisors (see below), whose sum is σ = 106178162688. Its totient is φ = 35376929280.

The previous prime is 65139776729. The next prime is 65139776753. The reversal of 65139776751 is 15767793156.

It is not a de Polignac number, because 65139776751 - 2⁶ = 65139776687 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 65139776691 and 65139776700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65139776753) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 64303321 + ... + 64304333.

It is an arithmetic number, because the mean of its divisors is an integer number (1106022528).

Almost surely, 2^65139776751 is an apocalyptic number.

65139776751 is a deficient number, since it is larger than the sum of its proper divisors (41038385937).

65139776751 is a wasteful number, since it uses less digits than its factorization.

65139776751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1301 (or 1294 counting only the distinct ones).

The product of its digits is 8334900, while the sum is 57.

The spelling of 65139776751 in words is "sixty-five billion, one hundred thirty-nine million, seven hundred seventy-six thousand, seven hundred fifty-one".