7699640854 has 4 divisors (see below), whose sum is σ = 11549461284. Its totient is φ = 3849820426.

The previous prime is 7699640843. The next prime is 7699640857. The reversal of 7699640854 is 4580469967.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7699640857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1924910212 + ... + 1924910215.

It is an arithmetic number, because the mean of its divisors is an integer number (2887365321).

Almost surely, 2^7699640854 is an apocalyptic number.

7699640854 is a deficient number, since it is larger than the sum of its proper divisors (3849820430).

7699640854 is a wasteful number, since it uses less digits than its factorization.

7699640854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3849820429.

The product of its (nonzero) digits is 13063680, while the sum is 58.

The square root of 7699640854 is about 87747.5974257985. The cubic root of 7699640854 is about 1974.6501204918.

The spelling of 7699640854 in words is "seven billion, six hundred ninety-nine million, six hundred forty thousand, eight hundred fifty-four".