7949515860 has 576 divisors, whose sum is σ = 30869040384. Its totient is φ = 1625702400.

The previous prime is 7949515799. The next prime is 7949515883. The reversal of 7949515860 is 685159497.

7949515860 is a `hidden beast` number, since 7 + 9 + 4 + 9 + 51 + 586 + 0 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 7949515797 and 7949515806.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 16190215 + ... + 16190705.

It is an arithmetic number, because the mean of its divisors is an integer number (53592084).

Almost surely, 2^7949515860 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 7949515860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15434520192).

7949515860 is an abundant number, since it is smaller than the sum of its proper divisors (22919524524).

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

7949515860 is a wasteful number, since it uses less digits than its factorization.

7949515860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 584 (or 579 counting only the distinct ones).

The product of its (nonzero) digits is 2721600, while the sum is 54.

The square root of 7949515860 is about 89160.0575369935. The cubic root of 7949515860 is about 1995.7841077038.

The spelling of 7949515860 in words is "seven billion, nine hundred forty-nine million, five hundred fifteen thousand, eight hundred sixty".