7493487690 has 32 divisors (see below), whose sum is σ = 19367784576. Its totient is φ = 1844550720.

The previous prime is 7493487649. The next prime is 7493487707. The reversal of 7493487690 is 967843947.

It is a super-2 number, since 2×7493487690² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 7493487690.

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 in 15 ways as a sum of consecutive naturals, for example, 9606646 + ... + 9607425.

It is an arithmetic number, because the mean of its divisors is an integer number (605243268).

Almost surely, 2^7493487690 is an apocalyptic number.

7493487690 is an abundant number, since it is smaller than the sum of its proper divisors (11874296886).

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

7493487690 is a wasteful number, since it uses less digits than its factorization.

7493487690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19214094.

The product of its (nonzero) digits is 9144576, while the sum is 57.

The square root of 7493487690 is about 86564.9333737397. The cubic root of 7493487690 is about 1956.8671047095.

The spelling of 7493487690 in words is "seven billion, four hundred ninety-three million, four hundred eighty-seven thousand, six hundred ninety".