947915967976 has 64 divisors (see below), whose sum is σ = 1881216000000. Its totient is φ = 446536069056.

The previous prime is 947915967967. The next prime is 947915968061. The reversal of 947915967976 is 679769519749.

It is a junction number, because it is equal to n+sod(n) for n = 947915967896 and 947915967905.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72558421 + ... + 72571483.

It is an arithmetic number, because the mean of its divisors is an integer number (29394000000).

Almost surely, 2^947915967976 is an apocalyptic number.

It is an amenable number.

947915967976 is a deficient number, since it is larger than the sum of its proper divisors (933300032024).

947915967976 is a wasteful number, since it uses less digits than its factorization.

947915967976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15686 (or 15682 counting only the distinct ones).

The product of its digits is 1620304560, while the sum is 79.

The spelling of 947915967976 in words is "nine hundred forty-seven billion, nine hundred fifteen million, nine hundred sixty-seven thousand, nine hundred seventy-six".