73260405720 has 64 divisors (see below), whose sum is σ = 244201356000. Its totient is φ = 19536107904.

The previous prime is 73260405709. The next prime is 73260405767. The reversal of 73260405720 is 2750406237.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33915775 + ... + 33917934.

Almost surely, 2^73260405720 is an apocalyptic number.

It is an amenable number.

73260405720 is an abundant number, since it is smaller than the sum of its proper divisors (170940950280).

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

73260405720 is a wasteful number, since it uses less digits than its factorization.

73260405720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67833729 (or 67833719 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 36.

The spelling of 73260405720 in words is "seventy-three billion, two hundred sixty million, four hundred five thousand, seven hundred twenty".