72415451427 has 32 divisors (see below), whose sum is σ = 106002274560. Its totient is φ = 43609104000.

The previous prime is 72415451419. The next prime is 72415451441.

72415451427 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 72415451427 - 2³ = 72415451419 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72415451467) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8244324 + ... + 8253102.

It is an arithmetic number, because the mean of its divisors is an integer number (3312571080).

Almost surely, 2^72415451427 is an apocalyptic number.

72415451427 is a deficient number, since it is larger than the sum of its proper divisors (33586823133).

72415451427 is a wasteful number, since it uses less digits than its factorization.

72415451427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10355.

The product of its digits is 313600, while the sum is 42.

The spelling of 72415451427 in words is "seventy-two billion, four hundred fifteen million, four hundred fifty-one thousand, four hundred twenty-seven".