797371742181 has 16 divisors (see below), whose sum is σ = 1278992268800. Its totient is φ = 431659890288.

The previous prime is 797371742179. The next prime is 797371742203. The reversal of 797371742181 is 181247173797.

It is not a de Polignac number, because 797371742181 - 2¹ = 797371742179 is a prime.

It is a super-2 number, since 2×797371742181² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (797371742161) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 999212311 + ... + 999213108.

It is an arithmetic number, because the mean of its divisors is an integer number (79937016800).

Almost surely, 2^797371742181 is an apocalyptic number.

It is an amenable number.

797371742181 is a deficient number, since it is larger than the sum of its proper divisors (481620526619).

797371742181 is a wasteful number, since it uses less digits than its factorization.

797371742181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1998425448.

The product of its digits is 4148928, while the sum is 57.

The spelling of 797371742181 in words is "seven hundred ninety-seven billion, three hundred seventy-one million, seven hundred forty-two thousand, one hundred eighty-one".