797951316097 has 4 divisors (see below), whose sum is σ = 859332186580. Its totient is φ = 736570445616.

The previous prime is 797951316089. The next prime is 797951316133. The reversal of 797951316097 is 790613159797.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 790613159797 = 367 ⋅2154259291.

It can be written as a sum of positive squares in 2 ways, for example, as 293963489856 + 503987826241 = 542184^2 + 709921^2 .

It is a cyclic number.

It is not a de Polignac number, because 797951316097 - 2³ = 797951316089 is a prime.

It is a super-2 number, since 2×797951316097² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (797951316797) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30690435222 + ... + 30690435247.

It is an arithmetic number, because the mean of its divisors is an integer number (214833046645).

Almost surely, 2^797951316097 is an apocalyptic number.

It is an amenable number.

797951316097 is a deficient number, since it is larger than the sum of its proper divisors (61380870483).

797951316097 is a wasteful number, since it uses less digits than its factorization.

797951316097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61380870482.

The product of its (nonzero) digits is 22504230, while the sum is 64.

The spelling of 797951316097 in words is "seven hundred ninety-seven billion, nine hundred fifty-one million, three hundred sixteen thousand, ninety-seven".