697172271796 has 192 divisors, whose sum is σ = 1669813125120. Its totient is φ = 245903040000.

The previous prime is 697172271773. The next prime is 697172271823.

It is a happy number.

697172271796 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×697172271796² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 87679621 + ... + 87687571.

It is an arithmetic number, because the mean of its divisors is an integer number (8696943360).

Almost surely, 2^697172271796 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 697172271796, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (834906562560).

697172271796 is an abundant number, since it is smaller than the sum of its proper divisors (972640853324).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

697172271796 is a wasteful number, since it uses less digits than its factorization.

697172271796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8406 (or 8404 counting only the distinct ones).

The product of its digits is 28005264, while the sum is 64.

The spelling of 697172271796 in words is "six hundred ninety-seven billion, one hundred seventy-two million, two hundred seventy-one thousand, seven hundred ninety-six".