7749910990 has 32 divisors (see below), whose sum is σ = 14448170880. Its totient is φ = 2989480704.

The previous prime is 7749910919. The next prime is 7749911003. The reversal of 7749910990 is 990199477.

It is a super-2 number, since 2×7749910990² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 232939 + ... + 264121.

It is an arithmetic number, because the mean of its divisors is an integer number (451505340).

Almost surely, 2^7749910990 is an apocalyptic number.

7749910990 is a deficient number, since it is larger than the sum of its proper divisors (6698259890).

7749910990 is a wasteful number, since it uses less digits than its factorization.

7749910990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32076.

The product of its (nonzero) digits is 1285956, while the sum is 55.

The square root of 7749910990 is about 88033.5787640148. The cubic root of 7749910990 is about 1978.9382286406.

The spelling of 7749910990 in words is "seven billion, seven hundred forty-nine million, nine hundred ten thousand, nine hundred ninety".