31540052352 has 64 divisors (see below), whose sum is σ = 87420821760. Its totient is φ = 10056245760.

The previous prime is 31540052317. The next prime is 31540052353. The reversal of 31540052352 is 25325004513.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31540052353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1776724 + ... + 1794387.

It is an arithmetic number, because the mean of its divisors is an integer number (1365950340).

Almost surely, 2^31540052352 is an apocalyptic number.

31540052352 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

31540052352 is an abundant number, since it is smaller than the sum of its proper divisors (55880769408).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31540052352 is a wasteful number, since it uses less digits than its factorization.

31540052352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3571151 (or 3571139 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 30.

Adding to 31540052352 its reverse (25325004513), we get a palindrome (56865056865).

The spelling of 31540052352 in words is "thirty-one billion, five hundred forty million, fifty-two thousand, three hundred fifty-two".