71952194368 has 56 divisors (see below), whose sum is σ = 147453364224. Its totient is φ = 34799654400.

The previous prime is 71952194359. The next prime is 71952194389. The reversal of 71952194368 is 86349125917.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5133546 + ... + 5147542.

Almost surely, 2^71952194368 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 71952194368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73726682112).

71952194368 is an abundant number, since it is smaller than the sum of its proper divisors (75501169856).

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

71952194368 is a wasteful number, since it uses less digits than its factorization.

71952194368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16631 (or 16621 counting only the distinct ones).

The product of its digits is 3265920, while the sum is 55.

The spelling of 71952194368 in words is "seventy-one billion, nine hundred fifty-two million, one hundred ninety-four thousand, three hundred sixty-eight".