72426588562427 has 4 divisors (see below), whose sum is σ = 79010823886296. Its totient is φ = 65842353238560.

The previous prime is 72426588562421. The next prime is 72426588562439.

72426588562427 is nontrivially palindromic in base 10.

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 72426588562427 - 2⁴ = 72426588562411 is a prime.

It is a super-2 number, since 2×72426588562427² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72426588562421) 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, 3292117661918 + ... + 3292117661939.

It is an arithmetic number, because the mean of its divisors is an integer number (19752705971574).

Almost surely, 2^{72426588562427} is an apocalyptic number.

72426588562427 is a deficient number, since it is larger than the sum of its proper divisors (6584235323869).

72426588562427 is a wasteful number, since it uses less digits than its factorization.

72426588562427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6584235323868.

The product of its digits is 722534400, while the sum is 68.

The spelling of 72426588562427 in words is "seventy-two trillion, four hundred twenty-six billion, five hundred eighty-eight million, five hundred sixty-two thousand, four hundred twenty-seven".