971455257882 has 64 divisors (see below), whose sum is σ = 2205275466240. Its totient is φ = 316848984768.

The previous prime is 971455257823. The next prime is 971455257893. The reversal of 971455257882 is 288752554179.

971455257882 is a `hidden beast` number, since 9 + 7 + 1 + 4 + 5 + 52 + 578 + 8 + 2 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10504428 + ... + 10596504.

It is an arithmetic number, because the mean of its divisors is an integer number (34457429160).

Almost surely, 2^971455257882 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 971455257882, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1102637733120).

971455257882 is an abundant number, since it is smaller than the sum of its proper divisors (1233820208358).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

971455257882 is a wasteful number, since it uses less digits than its factorization.

971455257882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96292 (or 96286 counting only the distinct ones).

The product of its digits is 56448000, while the sum is 63.

The spelling of 971455257882 in words is "nine hundred seventy-one billion, four hundred fifty-five million, two hundred fifty-seven thousand, eight hundred eighty-two".