7504645990 has 16 divisors (see below), whose sum is σ = 13873454352. Its totient is φ = 2920726944.

The previous prime is 7504645979. The next prime is 7504645991. The reversal of 7504645990 is 995464057.

It is a happy number.

It is a super-2 number, since 2×7504645990² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7504645991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10141044 + ... + 10141783.

It is an arithmetic number, because the mean of its divisors is an integer number (867090897).

Almost surely, 2^7504645990 is an apocalyptic number.

7504645990 is a deficient number, since it is larger than the sum of its proper divisors (6368808362).

7504645990 is a wasteful number, since it uses less digits than its factorization.

7504645990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20282871.

The product of its (nonzero) digits is 1360800, while the sum is 49.

The square root of 7504645990 is about 86629.3598614234. The cubic root of 7504645990 is about 1957.8379246178.

The spelling of 7504645990 in words is "seven billion, five hundred four million, six hundred forty-five thousand, nine hundred ninety".