7991156950 has 48 divisors (see below), whose sum is σ = 17009920224. Its totient is φ = 2736115200.

The previous prime is 7991156923. The next prime is 7991156959. The reversal of 7991156950 is 596511997.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7991156959) 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, 249870 + ... + 280030.

It is an arithmetic number, because the mean of its divisors is an integer number (354373338).

Almost surely, 2^7991156950 is an apocalyptic number.

7991156950 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

7991156950 is an abundant number, since it is smaller than the sum of its proper divisors (9018763274).

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

7991156950 is a wasteful number, since it uses less digits than its factorization.

7991156950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30937 (or 30932 counting only the distinct ones).

The product of its (nonzero) digits is 765450, while the sum is 52.

The square root of 7991156950 is about 89393.2712792188. The cubic root of 7991156950 is about 1999.2628074736.

The spelling of 7991156950 in words is "seven billion, nine hundred ninety-one million, one hundred fifty-six thousand, nine hundred fifty".