71922498651 has 24 divisors (see below), whose sum is σ = 104499973760. Its totient is φ = 47666102400.

The previous prime is 71922498623. The next prime is 71922498653. The reversal of 71922498651 is 15689422917.

It is a happy number.

71922498651 is a `hidden beast` number, since 7 + 1 + 92 + 2 + 498 + 65 + 1 = 666.

It is not a de Polignac number, because 71922498651 - 2¹³ = 71922490459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71922498653) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5742486 + ... + 5754996.

Almost surely, 2^71922498651 is an apocalyptic number.

71922498651 is a deficient number, since it is larger than the sum of its proper divisors (32577475109).

71922498651 is a wasteful number, since it uses less digits than its factorization.

71922498651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16227 (or 16224 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 54.

The spelling of 71922498651 in words is "seventy-one billion, nine hundred twenty-two million, four hundred ninety-eight thousand, six hundred fifty-one".