1525684490972 has 12 divisors (see below), whose sum is σ = 2687866973400. Its totient is φ = 757722498576.

The previous prime is 1525684490929. The next prime is 1525684490977. The reversal of 1525684490972 is 2790944865251.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1525684490977) 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, 1279936058 + ... + 1279937249.

It is an arithmetic number, because the mean of its divisors is an integer number (223988914450).

Almost surely, 2^{1525684490972} is an apocalyptic number.

It is an amenable number.

1525684490972 is a deficient number, since it is larger than the sum of its proper divisors (1162182482428).

1525684490972 is a wasteful number, since it uses less digits than its factorization.

1525684490972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2559873460 (or 2559873458 counting only the distinct ones).

The product of its (nonzero) digits is 43545600, while the sum is 62.

The spelling of 1525684490972 in words is "one trillion, five hundred twenty-five billion, six hundred eighty-four million, four hundred ninety thousand, nine hundred seventy-two".