971473292881 has 24 divisors (see below), whose sum is σ = 1218398896680. Its totient is φ = 767761327872.

The previous prime is 971473292869. The next prime is 971473292887. The reversal of 971473292881 is 188292374179.

It can be written as a sum of positive squares in 4 ways, for example, as 50449202881 + 921024090000 = 224609^2 + 959700^2 .

It is not a de Polignac number, because 971473292881 - 2⁹ = 971473292369 is a prime.

It is a super-2 number, since 2×971473292881² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (971473292887) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 310836 + ... + 1428133.

It is an arithmetic number, because the mean of its divisors is an integer number (50766620695).

Almost surely, 2^971473292881 is an apocalyptic number.

971473292881 is a gapful number since it is divisible by the number (91) formed by its first and last digit.

It is an amenable number.

971473292881 is a deficient number, since it is larger than the sum of its proper divisors (246925603799).

971473292881 is a wasteful number, since it uses less digits than its factorization.

971473292881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1739873 (or 1739866 counting only the distinct ones).

The product of its digits is 12192768, while the sum is 61.

The spelling of 971473292881 in words is "nine hundred seventy-one billion, four hundred seventy-three million, two hundred ninety-two thousand, eight hundred eighty-one".