1577554055431 has 2 divisors, whose sum is σ = 1577554055432. Its totient is φ = 1577554055430.

The previous prime is 1577554055401. The next prime is 1577554055489. The reversal of 1577554055431 is 1345504557751.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1577554055431 - 2⁷ = 1577554055303 is a prime.

It is a super-2 number, since 2×1577554055431² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1577554055401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 788777027715 + 788777027716.

It is an arithmetic number, because the mean of its divisors is an integer number (788777027716).

Almost surely, 2^{1577554055431} is an apocalyptic number.

1577554055431 is a deficient number, since it is larger than the sum of its proper divisors (1).

1577554055431 is an equidigital number, since it uses as much as digits as its factorization.

1577554055431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7350000, while the sum is 52.

The spelling of 1577554055431 in words is "one trillion, five hundred seventy-seven billion, five hundred fifty-four million, fifty-five thousand, four hundred thirty-one".