1317048864637 has 16 divisors (see below), whose sum is σ = 1467580656960. Its totient is φ = 1171900828800.

The previous prime is 1317048864487. The next prime is 1317048864653. The reversal of 1317048864637 is 7364688407131.

It is a cyclic number.

It is not a de Polignac number, because 1317048864637 - 2¹¹ = 1317048862589 is a prime.

It is a super-2 number, since 2×1317048864637² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1317048865637) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6154962 + ... + 6365347.

It is an arithmetic number, because the mean of its divisors is an integer number (91723791060).

Almost surely, 2^{1317048864637} is an apocalyptic number.

It is an amenable number.

1317048864637 is a deficient number, since it is larger than the sum of its proper divisors (150531792323).

1317048864637 is a wasteful number, since it uses less digits than its factorization.

1317048864637 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12520524.

The product of its (nonzero) digits is 16257024, while the sum is 58.

The spelling of 1317048864637 in words is "one trillion, three hundred seventeen billion, forty-eight million, eight hundred sixty-four thousand, six hundred thirty-seven".