797156377874 has 8 divisors (see below), whose sum is σ = 1196824574268. Its totient is φ = 398214853120.

The previous prime is 797156377867. The next prime is 797156377879. The reversal of 797156377874 is 478773651797.

It can be written as a sum of positive squares in 2 ways, for example, as 783566647249 + 13589730625 = 885193^2 + 116575^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 797156377798 and 797156377807.

It is not an unprimeable number, because it can be changed into a prime (797156377879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 181665167 + ... + 181669554.

Almost surely, 2^797156377874 is an apocalyptic number.

797156377874 is a deficient number, since it is larger than the sum of its proper divisors (399668196394).

797156377874 is a wasteful number, since it uses less digits than its factorization.

797156377874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363335820.

The product of its digits is 435637440, while the sum is 71.

The spelling of 797156377874 in words is "seven hundred ninety-seven billion, one hundred fifty-six million, three hundred seventy-seven thousand, eight hundred seventy-four".