1525042438992 has 200 divisors, whose sum is σ = 4536250754376. Its totient is φ = 494276649984.

The previous prime is 1525042438957. The next prime is 1525042439003. The reversal of 1525042438992 is 2998342405251.

1525042438992 is a `hidden beast` number, since 1 + 5 + 2 + 50 + 424 + 3 + 89 + 92 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 250004000016 + 1275038438976 = 500004^2 + 1129176^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 77336718 + ... + 77356434.

Almost surely, 2^{1525042438992} is an apocalyptic number.

1525042438992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1525042438992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2268125377188).

1525042438992 is an abundant number, since it is smaller than the sum of its proper divisors (3011208315384).

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

1525042438992 is a wasteful number, since it uses less digits than its factorization.

1525042438992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21387 (or 21372 counting only the distinct ones).

The product of its (nonzero) digits is 6220800, while the sum is 54.

The spelling of 1525042438992 in words is "one trillion, five hundred twenty-five billion, forty-two million, four hundred thirty-eight thousand, nine hundred ninety-two".