69452397931 has 4 divisors (see below), whose sum is σ = 79374169072. Its totient is φ = 59530626792.

The previous prime is 69452397929. The next prime is 69452397943. The reversal of 69452397931 is 13979325496.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 69452397931 - 2¹ = 69452397929 is a prime.

It is a super-2 number, since 2×69452397931² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (69452397031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4960885560 + ... + 4960885573.

It is an arithmetic number, because the mean of its divisors is an integer number (19843542268).

Almost surely, 2^69452397931 is an apocalyptic number.

69452397931 is a deficient number, since it is larger than the sum of its proper divisors (9921771141).

69452397931 is an equidigital number, since it uses as much as digits as its factorization.

69452397931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9921771140.

The product of its digits is 11022480, while the sum is 58.

The spelling of 69452397931 in words is "sixty-nine billion, four hundred fifty-two million, three hundred ninety-seven thousand, nine hundred thirty-one".