7914681690 has 32 divisors (see below), whose sum is σ = 19262779776. Its totient is φ = 2080854720.

The previous prime is 7914681689. The next prime is 7914681767. The reversal of 7914681690 is 961864197.

It is a happy number.

It is a super-2 number, since 2×7914681690² (a number of 21 digits) contains 22 as substring.

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, 1855777 + ... + 1860036.

It is an arithmetic number, because the mean of its divisors is an integer number (601961868).

Almost surely, 2^7914681690 is an apocalyptic number.

7914681690 is an abundant number, since it is smaller than the sum of its proper divisors (11348098086).

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

7914681690 is a wasteful number, since it uses less digits than its factorization.

7914681690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3715894.

The product of its (nonzero) digits is 653184, while the sum is 51.

The square root of 7914681690 is about 88964.4967950699. The cubic root of 7914681690 is about 1992.8647149598.

The spelling of 7914681690 in words is "seven billion, nine hundred fourteen million, six hundred eighty-one thousand, six hundred ninety".