69401561339 has 16 divisors (see below), whose sum is σ = 76259003136. Its totient is φ = 62636004000.

The previous prime is 69401561303. The next prime is 69401561377. The reversal of 69401561339 is 93316510496.

It is a cyclic number.

It is not a de Polignac number, because 69401561339 - 2⁸ = 69401561083 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 69401561293 and 69401561302.

It is not an unprimeable number, because it can be changed into a prime (69401561639) 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, 2889809 + ... + 2913725.

It is an arithmetic number, because the mean of its divisors is an integer number (4766187696).

Almost surely, 2^69401561339 is an apocalyptic number.

69401561339 is a deficient number, since it is larger than the sum of its proper divisors (6857441797).

69401561339 is a wasteful number, since it uses less digits than its factorization.

69401561339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25826.

The product of its (nonzero) digits is 524880, while the sum is 47.

The spelling of 69401561339 in words is "sixty-nine billion, four hundred one million, five hundred sixty-one thousand, three hundred thirty-nine".