31455365752340 has 48 divisors (see below), whose sum is σ = 67678720848144. Its totient is φ = 12273210393600.

The previous prime is 31455365752339. The next prime is 31455365752357. The reversal of 31455365752340 is 4325756355413.

It can be written as a sum of positive squares in 8 ways, for example, as 16476081737476 + 14979284014864 = 4059074^2 + 3870308^2 .

It is a super-2 number, since 2×31455365752340² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1697582 + ... + 8111258.

It is an arithmetic number, because the mean of its divisors is an integer number (1409973351003).

Almost surely, 2^{31455365752340} is an apocalyptic number.

It is an amenable number.

31455365752340 is an abundant number, since it is smaller than the sum of its proper divisors (36223355095804).

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

31455365752340 is a wasteful number, since it uses less digits than its factorization.

31455365752340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6419708 (or 6419706 counting only the distinct ones).

The product of its (nonzero) digits is 22680000, while the sum is 53.

The spelling of 31455365752340 in words is "thirty-one trillion, four hundred fifty-five billion, three hundred sixty-five million, seven hundred fifty-two thousand, three hundred forty".