971147878110 has 64 divisors (see below), whose sum is σ = 2638590500160. Its totient is φ = 254086485120.

The previous prime is 971147878087. The next prime is 971147878121. The reversal of 971147878110 is 11878741179.

It is a happy number.

971147878110 is a `hidden beast` number, since 97 + 1 + 1 + 478 + 7 + 81 + 1 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Curzon number.

It is a congruent number.

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, 33918181 + ... + 33946800.

It is an arithmetic number, because the mean of its divisors is an integer number (41227976565).

Almost surely, 2^971147878110 is an apocalyptic number.

971147878110 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

971147878110 is an abundant number, since it is smaller than the sum of its proper divisors (1667442622050).

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

971147878110 is a wasteful number, since it uses less digits than its factorization.

971147878110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67865050 (or 67865044 counting only the distinct ones).

The product of its (nonzero) digits is 790272, while the sum is 54.

The spelling of 971147878110 in words is "nine hundred seventy-one billion, one hundred forty-seven million, eight hundred seventy-eight thousand, one hundred ten".