72426555562427 has 8 divisors (see below), whose sum is σ = 79709998399920. Its totient is φ = 65259647810560.

The previous prime is 72426555562409. The next prime is 72426555562433.

72426555562427 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 72426555562427 - 2³⁸ = 72151677655483 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 72426555562427.

It is not an unprimeable number, because it can be changed into a prime (72426555562027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29133770102 + ... + 29133772587.

It is an arithmetic number, because the mean of its divisors is an integer number (9963749799990).

Almost surely, 2^{72426555562427} is an apocalyptic number.

72426555562427 is a deficient number, since it is larger than the sum of its proper divisors (7283442837493).

72426555562427 is a wasteful number, since it uses less digits than its factorization.

72426555562427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58267542813.

The product of its digits is 282240000, while the sum is 62.

The spelling of 72426555562427 in words is "seventy-two trillion, four hundred twenty-six billion, five hundred fifty-five million, five hundred sixty-two thousand, four hundred twenty-seven".