1874861255537 has 2 divisors, whose sum is σ = 1874861255538. Its totient is φ = 1874861255536.

The previous prime is 1874861255497. The next prime is 1874861255543. The reversal of 1874861255537 is 7355521684781.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1804874023936 + 69987231601 = 1343456^2 + 264551^2 .

It is a cyclic number.

It is not a de Polignac number, because 1874861255537 - 2⁶ = 1874861255473 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1874861255537.

It is not a weakly prime, because it can be changed into another prime (1874861255237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 937430627768 + 937430627769.

It is an arithmetic number, because the mean of its divisors is an integer number (937430627769).

Almost surely, 2^{1874861255537} is an apocalyptic number.

It is an amenable number.

1874861255537 is a deficient number, since it is larger than the sum of its proper divisors (1).

1874861255537 is an equidigital number, since it uses as much as digits as its factorization.

1874861255537 is an evil number, because the sum of its binary digits is even.

The product of its digits is 56448000, while the sum is 62.

The spelling of 1874861255537 in words is "one trillion, eight hundred seventy-four billion, eight hundred sixty-one million, two hundred fifty-five thousand, five hundred thirty-seven".