6986879490 has 32 divisors (see below), whose sum is σ = 16780752576. Its totient is φ = 1861807680.

The previous prime is 6986879489. The next prime is 6986879507. The reversal of 6986879490 is 949786896.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42892 + ... + 125751.

It is an arithmetic number, because the mean of its divisors is an integer number (524398518).

Almost surely, 2^6986879490 is an apocalyptic number.

6986879490 is an abundant number, since it is smaller than the sum of its proper divisors (9793873086).

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

6986879490 is a wasteful number, since it uses less digits than its factorization.

6986879490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170034.

The product of its (nonzero) digits is 47029248, while the sum is 66.

The square root of 6986879490 is about 83587.5558321931. Note that the first 3 decimals coincide. The cubic root of 6986879490 is about 1911.7352622799.

The spelling of 6986879490 in words is "six billion, nine hundred eighty-six million, eight hundred seventy-nine thousand, four hundred ninety".