65265736939 has 16 divisors (see below), whose sum is σ = 70885140480. Its totient is φ = 59733966240.

The previous prime is 65265736933. The next prime is 65265736957. The reversal of 65265736939 is 93963756256.

It is a happy number.

65265736939 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 65265736939 - 2³ = 65265736931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65265736931) 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, 719472 + ... + 805090.

It is an arithmetic number, because the mean of its divisors is an integer number (4430321280).

Almost surely, 2^65265736939 is an apocalyptic number.

65265736939 is a deficient number, since it is larger than the sum of its proper divisors (5619403541).

65265736939 is a wasteful number, since it uses less digits than its factorization.

65265736939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86130.

The product of its digits is 55112400, while the sum is 61.

The spelling of 65265736939 in words is "sixty-five billion, two hundred sixty-five million, seven hundred thirty-six thousand, nine hundred thirty-nine".