971785512023 has 16 divisors (see below), whose sum is σ = 1035845750016. Its totient is φ = 909752004480.

The previous prime is 971785511981. The next prime is 971785512031. The reversal of 971785512023 is 320215587179.

It is a cyclic number.

It is not a de Polignac number, because 971785512023 - 2⁶ = 971785511959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (971785512083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2174498 + ... + 2583023.

It is an arithmetic number, because the mean of its divisors is an integer number (64740359376).

Almost surely, 2^971785512023 is an apocalyptic number.

971785512023 is a deficient number, since it is larger than the sum of its proper divisors (64060237993).

971785512023 is a wasteful number, since it uses less digits than its factorization.

971785512023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4757734.

The product of its (nonzero) digits is 1058400, while the sum is 50.

The spelling of 971785512023 in words is "nine hundred seventy-one billion, seven hundred eighty-five million, five hundred twelve thousand, twenty-three".