72342477003451 has 4 divisors (see below), whose sum is σ = 72441170697232. Its totient is φ = 72243783309672.

The previous prime is 72342477003443. The next prime is 72342477003551. The reversal of 72342477003451 is 15430077424327.

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

It is a cyclic number.

It is not a de Polignac number, because 72342477003451 - 2³ = 72342477003443 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 72342477003395 and 72342477003404.

It is not an unprimeable number, because it can be changed into a prime (72342477003151) 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, 49346845791 + ... + 49346847256.

It is an arithmetic number, because the mean of its divisors is an integer number (18110292674308).

Almost surely, 2^{72342477003451} is an apocalyptic number.

72342477003451 is a deficient number, since it is larger than the sum of its proper divisors (98693693781).

72342477003451 is an equidigital number, since it uses as much as digits as its factorization.

72342477003451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98693693780.

The product of its (nonzero) digits is 3951360, while the sum is 49.

The spelling of 72342477003451 in words is "seventy-two trillion, three hundred forty-two billion, four hundred seventy-seven million, three thousand, four hundred fifty-one".