1557424924842 has 16 divisors (see below), whose sum is σ = 3114870425280. Its totient is φ = 519138212352.

The previous prime is 1557424924831. The next prime is 1557424924877. The reversal of 1557424924842 is 2484294247551.

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, 233443 + ... + 1780265.

It is an arithmetic number, because the mean of its divisors is an integer number (194679401580).

Almost surely, 2^{1557424924842} is an apocalyptic number.

1557424924842 is an abundant number, since it is smaller than the sum of its proper divisors (1557445500438).

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

1557424924842 is a wasteful number, since it uses less digits than its factorization.

1557424924842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1714637.

The product of its digits is 25804800, while the sum is 57.

The spelling of 1557424924842 in words is "one trillion, five hundred fifty-seven billion, four hundred twenty-four million, nine hundred twenty-four thousand, eight hundred forty-two".