972844721299 has 12 divisors (see below), whose sum is σ = 1071451151568. Its totient is φ = 882645977840.

The previous prime is 972844721291. The next prime is 972844721327. The reversal of 972844721299 is 992127448279.

It is not a de Polignac number, because 972844721299 - 2³ = 972844721291 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 972844721299.

It is not an unprimeable number, because it can be changed into a prime (972844721291) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7931224 + ... + 8052949.

It is an arithmetic number, because the mean of its divisors is an integer number (89287595964).

Almost surely, 2^972844721299 is an apocalyptic number.

972844721299 is a deficient number, since it is larger than the sum of its proper divisors (98606430269).

972844721299 is a wasteful number, since it uses less digits than its factorization.

972844721299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15984698 (or 15984687 counting only the distinct ones).

The product of its digits is 36578304, while the sum is 64.

The spelling of 972844721299 in words is "nine hundred seventy-two billion, eight hundred forty-four million, seven hundred twenty-one thousand, two hundred ninety-nine".