7986949776 has 120 divisors (see below), whose sum is σ = 24128622336. Its totient is φ = 2451720960.

The previous prime is 7986949753. The next prime is 7986949777. The reversal of 7986949776 is 6779496897.

7986949776 is a `hidden beast` number, since 7 + 9 + 8 + 69 + 497 + 76 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is not an unprimeable number, because it can be changed into a prime (7986949777) 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, 824481 + ... + 834111.

Almost surely, 2^7986949776 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7986949776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12064311168).

7986949776 is an abundant number, since it is smaller than the sum of its proper divisors (16141672560).

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

7986949776 is a wasteful number, since it uses less digits than its factorization.

7986949776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10101 (or 10092 counting only the distinct ones).

The product of its digits is 288054144, while the sum is 72.

The square root of 7986949776 is about 89369.7363540925. The cubic root of 7986949776 is about 1998.9118894484.

The spelling of 7986949776 in words is "seven billion, nine hundred eighty-six million, nine hundred forty-nine thousand, seven hundred seventy-six".