1397771172607 has 2 divisors, whose sum is σ = 1397771172608. Its totient is φ = 1397771172606.

The previous prime is 1397771172527. The next prime is 1397771172619. The reversal of 1397771172607 is 7062711777931.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1397771172607 - 2³⁵ = 1363411434239 is a prime.

It is a super-2 number, since 2×1397771172607² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1397771172667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 698885586303 + 698885586304.

It is an arithmetic number, because the mean of its divisors is an integer number (698885586304).

Almost surely, 2^{1397771172607} is an apocalyptic number.

1397771172607 is a deficient number, since it is larger than the sum of its proper divisors (1).

1397771172607 is an equidigital number, since it uses as much as digits as its factorization.

1397771172607 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5445468, while the sum is 58.

The spelling of 1397771172607 in words is "one trillion, three hundred ninety-seven billion, seven hundred seventy-one million, one hundred seventy-two thousand, six hundred seven".