72412073457 has 4 divisors (see below), whose sum is σ = 96549431280. Its totient is φ = 48274715636.

The previous prime is 72412073443. The next prime is 72412073471. The reversal of 72412073457 is 75437021427.

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, and also an emirpimes, since its reverse is a distinct semiprime: 75437021427 = 3 ⋅25145673809.

It is an interprime number because it is at equal distance from previous prime (72412073443) and next prime (72412073471).

It is a cyclic number.

It is not a de Polignac number, because 72412073457 - 2¹⁵ = 72412040689 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72412063457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12068678907 + ... + 12068678912.

It is an arithmetic number, because the mean of its divisors is an integer number (24137357820).

Almost surely, 2^72412073457 is an apocalyptic number.

It is an amenable number.

72412073457 is a deficient number, since it is larger than the sum of its proper divisors (24137357823).

72412073457 is a wasteful number, since it uses less digits than its factorization.

72412073457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24137357822.

The product of its (nonzero) digits is 329280, while the sum is 42.

The spelling of 72412073457 in words is "seventy-two billion, four hundred twelve million, seventy-three thousand, four hundred fifty-seven".