7966997950 has 12 divisors (see below), whose sum is σ = 14818616280. Its totient is φ = 3186799160.

The previous prime is 7966997947. The next prime is 7966998023. The reversal of 7966997950 is 597996697.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 79669930 + ... + 79670029.

It is an arithmetic number, because the mean of its divisors is an integer number (1234884690).

Almost surely, 2^7966997950 is an apocalyptic number.

7966997950 is a deficient number, since it is larger than the sum of its proper divisors (6851618330).

7966997950 is a wasteful number, since it uses less digits than its factorization.

7966997950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159339971 (or 159339966 counting only the distinct ones).

The product of its (nonzero) digits is 57868020, while the sum is 67.

The square root of 7966997950 is about 89258.0413744330. The cubic root of 7966997950 is about 1997.2460387560.

The spelling of 7966997950 in words is "seven billion, nine hundred sixty-six million, nine hundred ninety-seven thousand, nine hundred fifty".