797909900795401 has 3 divisors (see below), whose sum is σ = 797909929042701. Its totient is φ = 797909872548102.

The previous prime is 797909900795363. The next prime is 797909900795431. The reversal of 797909900795401 is 104597009909797.

The square root of 797909900795401 is 28247299.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 797909900795401 - 2³³ = 797901310860809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (797909900795431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 14123650 + ... + 42370948.

It is an arithmetic number, because the mean of its divisors is an integer number (265969976347567).

Almost surely, 2^{797909900795401} is an apocalyptic number.

797909900795401 is the 28247299-th square number.

797909900795401 is the 14123650-th centered octagonal number.

It is an amenable number.

797909900795401 is a deficient number, since it is larger than the sum of its proper divisors (28247300).

797909900795401 is an frugal number, since it uses more digits than its factorization.

797909900795401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56494598 (or 28247299 counting only the distinct ones).

The product of its (nonzero) digits is 405076140, while the sum is 76.

The spelling of 797909900795401 in words is "seven hundred ninety-seven trillion, nine hundred nine billion, nine hundred million, seven hundred ninety-five thousand, four hundred one".