72420024337373 has 4 divisors (see below), whose sum is σ = 72420073994940. Its totient is φ = 72419974679808.

The previous prime is 72420024337363. The next prime is 72420024337477. The reversal of 72420024337373 is 37373342002427.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 63934064990884 + 8485959346489 = 7995878^2 + 2913067^2 .

It is a cyclic number.

It is not a de Polignac number, because 72420024337373 - 2⁸ = 72420024337117 is a prime.

It is a super-2 number, since 2×72420024337373² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72420024337343) 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, 22572878 + ... + 25580751.

It is an arithmetic number, because the mean of its divisors is an integer number (18105018498735).

Almost surely, 2^{72420024337373} is an apocalyptic number.

It is an amenable number.

72420024337373 is a deficient number, since it is larger than the sum of its proper divisors (49657567).

72420024337373 is a wasteful number, since it uses less digits than its factorization.

72420024337373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49657566.

The product of its (nonzero) digits is 3556224, while the sum is 47.

The spelling of 72420024337373 in words is "seventy-two trillion, four hundred twenty billion, twenty-four million, three hundred thirty-seven thousand, three hundred seventy-three".