971685997948 has 24 divisors (see below), whose sum is σ = 1709247524544. Its totient is φ = 483334862400.

The previous prime is 971685997913. The next prime is 971685997949. The reversal of 971685997948 is 849799586179.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (971685997949) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71838 + ... + 1395898.

It is an arithmetic number, because the mean of its divisors is an integer number (71218646856).

Almost surely, 2^971685997948 is an apocalyptic number.

It is an amenable number.

971685997948 is a deficient number, since it is larger than the sum of its proper divisors (737561526596).

971685997948 is a wasteful number, since it uses less digits than its factorization.

971685997948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1325013 (or 1325011 counting only the distinct ones).

The product of its digits is 2469035520, while the sum is 82.

The spelling of 971685997948 in words is "nine hundred seventy-one billion, six hundred eighty-five million, nine hundred ninety-seven thousand, nine hundred forty-eight".