69225561921 has 16 divisors (see below), whose sum is σ = 94803102848. Its totient is φ = 44899401600.

The previous prime is 69225561893. The next prime is 69225561929. The reversal of 69225561921 is 12916552296.

It is not a de Polignac number, because 69225561921 - 2¹⁹ = 69225037633 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (69225561929) 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, 2262636 + ... + 2293026.

It is an arithmetic number, because the mean of its divisors is an integer number (5925193928).

Almost surely, 2^69225561921 is an apocalyptic number.

It is an amenable number.

69225561921 is a deficient number, since it is larger than the sum of its proper divisors (25577540927).

69225561921 is a wasteful number, since it uses less digits than its factorization.

69225561921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50952.

The product of its digits is 583200, while the sum is 48.

The spelling of 69225561921 in words is "sixty-nine billion, two hundred twenty-five million, five hundred sixty-one thousand, nine hundred twenty-one".