72454045427 has 8 divisors (see below), whose sum is σ = 72724633200. Its totient is φ = 72183523104.

The previous prime is 72454045387. The next prime is 72454045429.

72454045427 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 72454045427 - 2¹⁶ = 72453979891 is a prime.

It is a super-2 number, since 2×72454045427² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72454045429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4129349 + ... + 4146857.

It is an arithmetic number, because the mean of its divisors is an integer number (9090579150).

Almost surely, 2^72454045427 is an apocalyptic number.

72454045427 is a deficient number, since it is larger than the sum of its proper divisors (270587773).

72454045427 is a wasteful number, since it uses less digits than its factorization.

72454045427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32725.

The product of its (nonzero) digits is 1254400, while the sum is 44.

It can be divided in two parts, 724540 and 45427, that added together give a palindrome (769967).

The spelling of 72454045427 in words is "seventy-two billion, four hundred fifty-four million, forty-five thousand, four hundred twenty-seven".