1551042152542 has 16 divisors (see below), whose sum is σ = 2346716987280. Its totient is φ = 768818478528.

The previous prime is 1551042152507. The next prime is 1551042152563. The reversal of 1551042152542 is 2452512401551.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3627513 + ... + 4032484.

It is an arithmetic number, because the mean of its divisors is an integer number (146669811705).

Almost surely, 2^{1551042152542} is an apocalyptic number.

1551042152542 is a deficient number, since it is larger than the sum of its proper divisors (795674834738).

1551042152542 is a wasteful number, since it uses less digits than its factorization.

1551042152542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7660875.

The product of its (nonzero) digits is 80000, while the sum is 37.

The spelling of 1551042152542 in words is "one trillion, five hundred fifty-one billion, forty-two million, one hundred fifty-two thousand, five hundred forty-two".