72859362870 has 128 divisors (see below), whose sum is σ = 205321568256. Its totient is φ = 16201270656.

The previous prime is 72859362847. The next prime is 72859362881. The reversal of 72859362870 is 7826395827.

It is a self number, because there is not a number n which added to its sum of digits gives 72859362870.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1626189 + ... + 1670391.

It is an arithmetic number, because the mean of its divisors is an integer number (1604074752).

Almost surely, 2^72859362870 is an apocalyptic number.

72859362870 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 72859362870, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102660784128).

72859362870 is an abundant number, since it is smaller than the sum of its proper divisors (132462205386).

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

72859362870 is a wasteful number, since it uses less digits than its factorization.

72859362870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44434.

The product of its (nonzero) digits is 10160640, while the sum is 57.

The spelling of 72859362870 in words is "seventy-two billion, eight hundred fifty-nine million, three hundred sixty-two thousand, eight hundred seventy".