1556427027834 has 24 divisors (see below), whose sum is σ = 3854009783520. Its totient is φ = 444693436488.

The previous prime is 1556427027821. The next prime is 1556427027851. The reversal of 1556427027834 is 4387207246551.

1556427027834 is a `hidden beast` number, since 1 + 5 + 564 + 2 + 7 + 0 + 2 + 78 + 3 + 4 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6176297604 + ... + 6176297855.

It is an arithmetic number, because the mean of its divisors is an integer number (160583740980).

Almost surely, 2^{1556427027834} is an apocalyptic number.

1556427027834 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1556427027834 is an abundant number, since it is smaller than the sum of its proper divisors (2297582755686).

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

1556427027834 is a wasteful number, since it uses less digits than its factorization.

1556427027834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12352595474 (or 12352595471 counting only the distinct ones).

The product of its (nonzero) digits is 11289600, while the sum is 54.

The spelling of 1556427027834 in words is "one trillion, five hundred fifty-six billion, four hundred twenty-seven million, twenty-seven thousand, eight hundred thirty-four".