7949128364 has 6 divisors (see below), whose sum is σ = 13910974644. Its totient is φ = 3974564180.

The previous prime is 7949128349. The next prime is 7949128381. The reversal of 7949128364 is 4638219497.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 993641042 + ... + 993641049.

It is an arithmetic number, because the mean of its divisors is an integer number (2318495774).

Almost surely, 2^7949128364 is an apocalyptic number.

It is an amenable number.

7949128364 is a deficient number, since it is larger than the sum of its proper divisors (5961846280).

7949128364 is a wasteful number, since it uses less digits than its factorization.

7949128364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1987282095 (or 1987282093 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 53.

The square root of 7949128364 is about 89157.8844746778. The cubic root of 7949128364 is about 1995.7516792751.

The spelling of 7949128364 in words is "seven billion, nine hundred forty-nine million, one hundred twenty-eight thousand, three hundred sixty-four".