72805108701 has 16 divisors (see below), whose sum is σ = 110690121024. Its totient is φ = 42167664384.

The previous prime is 72805108697. The next prime is 72805108703. The reversal of 72805108701 is 10780150827.

It is not a de Polignac number, because 72805108701 - 2² = 72805108697 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 72805108701.

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 15 ways as a sum of consecutive naturals, for example, 54905151 + ... + 54906476.

It is an arithmetic number, because the mean of its divisors is an integer number (6918132564).

Almost surely, 2^72805108701 is an apocalyptic number.

It is an amenable number.

72805108701 is a deficient number, since it is larger than the sum of its proper divisors (37885012323).

72805108701 is a wasteful number, since it uses less digits than its factorization.

72805108701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109811660.

The product of its (nonzero) digits is 31360, while the sum is 39.

The spelling of 72805108701 in words is "seventy-two billion, eight hundred five million, one hundred eight thousand, seven hundred one".