72246951251281 has 8 divisors (see below), whose sum is σ = 74527317468224. Its totient is φ = 70001939549520.

The previous prime is 72246951251239. The next prime is 72246951251347. The reversal of 72246951251281 is 18215215964227.

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 72246951251281 - 2³³ = 72238361316689 is a prime.

It is a super-2 number, since 2×72246951251281² (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 (72246951251381) 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, 8838624645 + ... + 8838632818.

It is an arithmetic number, because the mean of its divisors is an integer number (9315914683528).

Almost surely, 2^{72246951251281} is an apocalyptic number.

It is an amenable number.

72246951251281 is a deficient number, since it is larger than the sum of its proper divisors (2280366216943).

72246951251281 is a wasteful number, since it uses less digits than its factorization.

72246951251281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17677257591.

The product of its digits is 4838400, while the sum is 55.

The spelling of 72246951251281 in words is "seventy-two trillion, two hundred forty-six billion, nine hundred fifty-one million, two hundred fifty-one thousand, two hundred eighty-one".