72450247464777 has 24 divisors (see below), whose sum is σ = 121015797966336. Its totient is φ = 38215515145248.

The previous prime is 72450247464757. The next prime is 72450247464779. The reversal of 72450247464777 is 77746474205427.

It is not a de Polignac number, because 72450247464777 - 2¹⁸ = 72450247202633 is a prime.

It is a super-2 number, since 2×72450247464777² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (72450247464779) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18956106793 + ... + 18956110614.

It is an arithmetic number, because the mean of its divisors is an integer number (5042324915264).

Almost surely, 2^{72450247464777} is an apocalyptic number.

It is an amenable number.

72450247464777 is a deficient number, since it is larger than the sum of its proper divisors (48565550501559).

72450247464777 is a wasteful number, since it uses less digits than its factorization.

72450247464777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37912217437 (or 37912217430 counting only the distinct ones).

The product of its (nonzero) digits is 516311040, while the sum is 66.

The spelling of 72450247464777 in words is "seventy-two trillion, four hundred fifty billion, two hundred forty-seven million, four hundred sixty-four thousand, seven hundred seventy-seven".