72431474201 has 4 divisors (see below), whose sum is σ = 76692149172. Its totient is φ = 68170799232.

The previous prime is 72431474119. The next prime is 72431474233. The reversal of 72431474201 is 10247413427.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10247413427 = 5861 ⋅1748407.

It can be written as a sum of positive squares in 2 ways, for example, as 57833035225 + 14598438976 = 240485^2 + 120824^2 .

It is a cyclic number.

It is not a de Polignac number, because 72431474201 - 2¹⁴ = 72431457817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72431474251) 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, 2130337460 + ... + 2130337493.

It is an arithmetic number, because the mean of its divisors is an integer number (19173037293).

Almost surely, 2^72431474201 is an apocalyptic number.

It is an amenable number.

72431474201 is a deficient number, since it is larger than the sum of its proper divisors (4260674971).

72431474201 is a wasteful number, since it uses less digits than its factorization.

72431474201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4260674970.

The product of its (nonzero) digits is 37632, while the sum is 35.

Adding to 72431474201 its reverse (10247413427), we get a palindrome (82678887628).

The spelling of 72431474201 in words is "seventy-two billion, four hundred thirty-one million, four hundred seventy-four thousand, two hundred one".