1371076887491 has 2 divisors, whose sum is σ = 1371076887492. Its totient is φ = 1371076887490.

The previous prime is 1371076887449. The next prime is 1371076887497. The reversal of 1371076887491 is 1947886701731.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1371076887491 - 2²² = 1371072693187 is a prime.

It is not a weakly prime, because it can be changed into another prime (1371076887497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 685538443745 + 685538443746.

It is an arithmetic number, because the mean of its divisors is an integer number (685538443746).

Almost surely, 2^{1371076887491} is an apocalyptic number.

1371076887491 is a deficient number, since it is larger than the sum of its proper divisors (1).

1371076887491 is an equidigital number, since it uses as much as digits as its factorization.

1371076887491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14224896, while the sum is 62.

The spelling of 1371076887491 in words is "one trillion, three hundred seventy-one billion, seventy-six million, eight hundred eighty-seven thousand, four hundred ninety-one".