972526607999 has 4 divisors (see below), whose sum is σ = 972604180680. Its totient is φ = 972449035320.

The previous prime is 972526607981. The next prime is 972526608043. The reversal of 972526607999 is 999706625279.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-972526607999 is a prime.

It is a super-2 number, since 2×972526607999² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (972526607909) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38767532 + ... + 38792609.

It is an arithmetic number, because the mean of its divisors is an integer number (243151045170).

Almost surely, 2^972526607999 is an apocalyptic number.

972526607999 is a deficient number, since it is larger than the sum of its proper divisors (77572681).

972526607999 is a wasteful number, since it uses less digits than its factorization.

972526607999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77572680.

The product of its (nonzero) digits is 231472080, while the sum is 71.

The spelling of 972526607999 in words is "nine hundred seventy-two billion, five hundred twenty-six million, six hundred seven thousand, nine hundred ninety-nine".