71826398079 has 32 divisors (see below), whose sum is σ = 105737387520. Its totient is φ = 43166711808.

The previous prime is 71826398069. The next prime is 71826398167. The reversal of 71826398079 is 97089362817.

It is not a de Polignac number, because 71826398079 - 2¹⁵ = 71826365311 is a prime.

It is a super-2 number, since 2×71826398079² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71826398069) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 111087 + ... + 394959.

It is an arithmetic number, because the mean of its divisors is an integer number (3304293360).

Almost surely, 2^71826398079 is an apocalyptic number.

71826398079 is a deficient number, since it is larger than the sum of its proper divisors (33910989441).

71826398079 is a wasteful number, since it uses less digits than its factorization.

71826398079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284111.

The product of its (nonzero) digits is 9144576, while the sum is 60.

The spelling of 71826398079 in words is "seventy-one billion, eight hundred twenty-six million, three hundred ninety-eight thousand, seventy-nine".