72454511545427 has 128 divisors (see below), whose sum is σ = 87232924090368. Its totient is φ = 59491474099200.

The previous prime is 72454511545411. The next prime is 72454511545433.

72454511545427 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 72454511545427 - 2⁴ = 72454511545411 is a prime.

It is a super-2 number, since 2×72454511545427² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (72454511545027) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 30277688543 + ... + 30277690935.

It is an arithmetic number, because the mean of its divisors is an integer number (681507219456).

Almost surely, 2^{72454511545427} is an apocalyptic number.

72454511545427 is a deficient number, since it is larger than the sum of its proper divisors (14778412544941).

72454511545427 is a wasteful number, since it uses less digits than its factorization.

72454511545427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3049.

The product of its digits is 31360000, while the sum is 56.

The spelling of 72454511545427 in words is "seventy-two trillion, four hundred fifty-four billion, five hundred eleven million, five hundred forty-five thousand, four hundred twenty-seven".