72288407801 has 4 divisors (see below), whose sum is σ = 72380261712. Its totient is φ = 72196553892.

The previous prime is 72288407791. The next prime is 72288407831. The reversal of 72288407801 is 10870488227.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 72288407801 - 2²² = 72284213497 is a prime.

It is a super-2 number, since 2×72288407801² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72288407831) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45925775 + ... + 45927348.

It is an arithmetic number, because the mean of its divisors is an integer number (18095065428).

Almost surely, 2^72288407801 is an apocalyptic number.

It is an amenable number.

72288407801 is a deficient number, since it is larger than the sum of its proper divisors (91853911).

72288407801 is an equidigital number, since it uses as much as digits as its factorization.

72288407801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91853910.

The product of its (nonzero) digits is 401408, while the sum is 47.

The spelling of 72288407801 in words is "seventy-two billion, two hundred eighty-eight million, four hundred seven thousand, eight hundred one".