8151979850 has 72 divisors (see below), whose sum is σ = 17630100768. Its totient is φ = 2747181600.

The previous prime is 8151979799. The next prime is 8151979853. The reversal of 8151979850 is 589791518.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 8151979792 and 8151979801.

It is not an unprimeable number, because it can be changed into a prime (8151979853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1215005 + ... + 1221695.

Almost surely, 2^8151979850 is an apocalyptic number.

8151979850 is an abundant number, since it is smaller than the sum of its proper divisors (9478120918).

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

8151979850 is a wasteful number, since it uses less digits than its factorization.

8151979850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6828 (or 6764 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 53.

The square root of 8151979850 is about 90288.3151354593. The cubic root of 8151979850 is about 2012.5856224261.

The spelling of 8151979850 in words is "eight billion, one hundred fifty-one million, nine hundred seventy-nine thousand, eight hundred fifty".