6626707690 has 8 divisors (see below), whose sum is σ = 11928073860. Its totient is φ = 2650683072.

The previous prime is 6626707687. The next prime is 6626707741. The reversal of 6626707690 is 967076266.

It can be written as a sum of positive squares in 2 ways, for example, as 5716418449 + 910289241 = 75607^2 + 30171^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×6626707690² = 87826509617410272200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 331335375 + ... + 331335394.

Almost surely, 2^6626707690 is an apocalyptic number.

6626707690 is a deficient number, since it is larger than the sum of its proper divisors (5301366170).

6626707690 is a wasteful number, since it uses less digits than its factorization.

6626707690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 662670776.

The product of its (nonzero) digits is 1143072, while the sum is 49.

The square root of 6626707690 is about 81404.5925608623. The cubic root of 6626707690 is about 1878.3042361181.

The spelling of 6626707690 in words is "six billion, six hundred twenty-six million, seven hundred seven thousand, six hundred ninety".