71999079800 has 24 divisors (see below), whose sum is σ = 167397861000. Its totient is φ = 28799631840.

The previous prime is 71999079799. The next prime is 71999079809. The reversal of 71999079800 is 897099917.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 71999079800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71999079809) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 179997500 + ... + 179997899.

It is an arithmetic number, because the mean of its divisors is an integer number (6974910875).

Almost surely, 2^71999079800 is an apocalyptic number.

It is an amenable number.

71999079800 is an abundant number, since it is smaller than the sum of its proper divisors (95398781200).

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

71999079800 is a wasteful number, since it uses less digits than its factorization.

71999079800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359995415 (or 359995406 counting only the distinct ones).

The product of its (nonzero) digits is 2571912, while the sum is 59.

The spelling of 71999079800 in words is "seventy-one billion, nine hundred ninety-nine million, seventy-nine thousand, eight hundred".