7764938394 has 16 divisors (see below), whose sum is σ = 16443399168. Its totient is φ = 2436059072.

The previous prime is 7764938393. The next prime is 7764938399. The reversal of 7764938394 is 4938394677.

It is not an unprimeable number, because it can be changed into a prime (7764938393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38063322 + ... + 38063525.

It is an arithmetic number, because the mean of its divisors is an integer number (1027712448).

Almost surely, 2^7764938394 is an apocalyptic number.

7764938394 is an abundant number, since it is smaller than the sum of its proper divisors (8678460774).

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

7764938394 is a wasteful number, since it uses less digits than its factorization.

7764938394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76126869.

The product of its digits is 27433728, while the sum is 60.

The square root of 7764938394 is about 88118.8878391006. The cubic root of 7764938394 is about 1980.2164843391.

The spelling of 7764938394 in words is "seven billion, seven hundred sixty-four million, nine hundred thirty-eight thousand, three hundred ninety-four".