72805108700 has 36 divisors (see below), whose sum is σ = 158242449960. Its totient is φ = 29074971840.

The previous prime is 72805108697. The next prime is 72805108703. The reversal of 72805108700 is 780150827.

It is an interprime number because it is at equal distance from previous prime (72805108697) and next prime (72805108703).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72805108703) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 526187 + ... + 649986.

It is an arithmetic number, because the mean of its divisors is an integer number (4395623610).

Almost surely, 2^72805108700 is an apocalyptic number.

It is an amenable number.

72805108700 is an abundant number, since it is smaller than the sum of its proper divisors (85437341260).

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

72805108700 is a wasteful number, since it uses less digits than its factorization.

72805108700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1176806 (or 1176799 counting only the distinct ones).

The product of its (nonzero) digits is 31360, while the sum is 38.

The spelling of 72805108700 in words is "seventy-two billion, eight hundred five million, one hundred eight thousand, seven hundred".