31464574451 has 4 divisors (see below), whose sum is σ = 31465525392. Its totient is φ = 31463623512.

The previous prime is 31464574417. The next prime is 31464574459. The reversal of 31464574451 is 15447546413.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15447546413 = 13 ⋅1188272801.

It is a cyclic number.

It is not a de Polignac number, because 31464574451 - 2⁶ = 31464574387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31464574459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 423980 + ... + 492633.

It is an arithmetic number, because the mean of its divisors is an integer number (7866381348).

Almost surely, 2^31464574451 is an apocalyptic number.

31464574451 is a deficient number, since it is larger than the sum of its proper divisors (950941).

31464574451 is an equidigital number, since it uses as much as digits as its factorization.

31464574451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 950940.

The product of its digits is 806400, while the sum is 44.

The spelling of 31464574451 in words is "thirty-one billion, four hundred sixty-four million, five hundred seventy-four thousand, four hundred fifty-one".