7890646630 has 16 divisors (see below), whose sum is σ = 14533470864. Its totient is φ = 3082857120.

The previous prime is 7890646619. The next prime is 7890646669. The reversal of 7890646630 is 366460987.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9174741 + ... + 9175600.

It is an arithmetic number, because the mean of its divisors is an integer number (908341929).

Almost surely, 2^7890646630 is an apocalyptic number.

7890646630 is a deficient number, since it is larger than the sum of its proper divisors (6642824234).

7890646630 is a wasteful number, since it uses less digits than its factorization.

7890646630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18350391.

The product of its (nonzero) digits is 1306368, while the sum is 49.

The square root of 7890646630 is about 88829.3117726351. The cubic root of 7890646630 is about 1990.8453795642.

The spelling of 7890646630 in words is "seven billion, eight hundred ninety million, six hundred forty-six thousand, six hundred thirty".