1373617361685 has 16 divisors (see below), whose sum is σ = 2313460820160. Its totient is φ = 694038245760.

The previous prime is 1373617361681. The next prime is 1373617361707. The reversal of 1373617361685 is 5861637163731.

It is not a de Polignac number, because 1373617361685 - 2² = 1373617361681 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1373617361681) 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, 2409854736 + ... + 2409855305.

It is an arithmetic number, because the mean of its divisors is an integer number (144591301260).

Almost surely, 2^{1373617361685} is an apocalyptic number.

1373617361685 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1373617361685 is a deficient number, since it is larger than the sum of its proper divisors (939843458475).

1373617361685 is a wasteful number, since it uses less digits than its factorization.

1373617361685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4819710068.

The product of its digits is 11430720, while the sum is 57.

The spelling of 1373617361685 in words is "one trillion, three hundred seventy-three billion, six hundred seventeen million, three hundred sixty-one thousand, six hundred eighty-five".