72858537080 has 160 divisors (see below), whose sum is σ = 195323365440. Its totient is φ = 24447064320.

The previous prime is 72858537079. The next prime is 72858537091. The reversal of 72858537080 is 8073585827.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 4505810 + ... + 4521950.

It is an arithmetic number, because the mean of its divisors is an integer number (1220771034).

Almost surely, 2^72858537080 is an apocalyptic number.

72858537080 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 72858537080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97661682720).

72858537080 is an abundant number, since it is smaller than the sum of its proper divisors (122464828360).

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

72858537080 is a wasteful number, since it uses less digits than its factorization.

72858537080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16227 (or 16202 counting only the distinct ones).

The product of its (nonzero) digits is 3763200, while the sum is 53.

The spelling of 72858537080 in words is "seventy-two billion, eight hundred fifty-eight million, five hundred thirty-seven thousand, eighty".