1397594475601 has 27 divisors (see below), whose sum is σ = 1511168491881. Its totient is φ = 1292351574024.

The previous prime is 1397594475587. The next prime is 1397594475649. The reversal of 1397594475601 is 1065744957931.

The square root of 1397594475601 is 1182199.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 1397594475601 - 2²¹ = 1397592378449 is a prime.

It is a super-2 number, since 2×1397594475601² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1397594475601.

It is not an unprimeable number, because it can be changed into a prime (1397594475661) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 965855860 + ... + 965857306.

It is an arithmetic number, because the mean of its divisors is an integer number (55969203403).

Almost surely, 2^{1397594475601} is an apocalyptic number.

1397594475601 is the 1182199-th square number.

1397594475601 is the 591100-th centered octagonal number.

It is an amenable number.

1397594475601 is a deficient number, since it is larger than the sum of its proper divisors (113574016280).

1397594475601 is an frugal number, since it uses more digits than its factorization.

1397594475601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3018 (or 1509 counting only the distinct ones).

The product of its (nonzero) digits is 28576800, while the sum is 61.

The spelling of 1397594475601 in words is "one trillion, three hundred ninety-seven billion, five hundred ninety-four million, four hundred seventy-five thousand, six hundred one".