31535505452540 has 12 divisors (see below), whose sum is σ = 66224561450376. Its totient is φ = 12614202181008.

The previous prime is 31535505452533. The next prime is 31535505452569. The reversal of 31535505452540 is 4525450553513.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 788387636294 + ... + 788387636333.

It is an arithmetic number, because the mean of its divisors is an integer number (5518713454198).

Almost surely, 2^{31535505452540} is an apocalyptic number.

It is an amenable number.

31535505452540 is an abundant number, since it is smaller than the sum of its proper divisors (34689055997836).

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

31535505452540 is a wasteful number, since it uses less digits than its factorization.

31535505452540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1576775272636 (or 1576775272634 counting only the distinct ones).

The product of its (nonzero) digits is 4500000, while the sum is 47.

The spelling of 31535505452540 in words is "thirty-one trillion, five hundred thirty-five billion, five hundred five million, four hundred fifty-two thousand, five hundred forty".