7626249990 has 96 divisors (see below), whose sum is σ = 20322731520. Its totient is φ = 1983578688.

The previous prime is 7626249979. The next prime is 7626250043. The reversal of 7626249990 is 999426267.

7626249990 is a `hidden beast` number, since 7 + 6 + 2 + 62 + 499 + 90 = 666.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a congruent number.

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 47 ways as a sum of consecutive naturals, for example, 583669 + ... + 596591.

It is an arithmetic number, because the mean of its divisors is an integer number (211695120).

Almost surely, 2^7626249990 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7626249990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10161365760).

7626249990 is an abundant number, since it is smaller than the sum of its proper divisors (12696481530).

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

7626249990 is a wasteful number, since it uses less digits than its factorization.

7626249990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13098 (or 13095 counting only the distinct ones).

The product of its (nonzero) digits is 2939328, while the sum is 54.

The square root of 7626249990 is about 87328.4031114734. The cubic root of 7626249990 is about 1968.3561393818.

The spelling of 7626249990 in words is "seven billion, six hundred twenty-six million, two hundred forty-nine thousand, nine hundred ninety".