72398821950 has 192 divisors, whose sum is σ = 245537617920. Its totient is φ = 15275329920.

The previous prime is 72398821933. The next prime is 72398821973. The reversal of 72398821950 is 5912889327.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 171814 + ... + 417513.

It is an arithmetic number, because the mean of its divisors is an integer number (1278841760).

Almost surely, 2^72398821950 is an apocalyptic number.

72398821950 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

72398821950 is an abundant number, since it is smaller than the sum of its proper divisors (173138795970).

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

72398821950 is a wasteful number, since it uses less digits than its factorization.

72398821950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 589368 (or 589357 counting only the distinct ones).

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

The spelling of 72398821950 in words is "seventy-two billion, three hundred ninety-eight million, eight hundred twenty-one thousand, nine hundred fifty".