72457555575427 has 8 divisors (see below), whose sum is σ = 79055088152112. Its totient is φ = 65861770010400.

The previous prime is 72457555575199. The next prime is 72457555575467.

It is a happy number.

72457555575427 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 a de Polignac number, because none of the positive numbers 2^k-72457555575427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72457555575467) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 436666188 + ... + 436832089.

It is an arithmetic number, because the mean of its divisors is an integer number (9881886019014).

Almost surely, 2^{72457555575427} is an apocalyptic number.

72457555575427 is a deficient number, since it is larger than the sum of its proper divisors (6597532576685).

72457555575427 is a wasteful number, since it uses less digits than its factorization.

72457555575427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 873505829.

The product of its digits is 2401000000, while the sum is 70.

The spelling of 72457555575427 in words is "seventy-two trillion, four hundred fifty-seven billion, five hundred fifty-five million, five hundred seventy-five thousand, four hundred twenty-seven".