7899914550 has 72 divisors (see below), whose sum is σ = 21534824808. Its totient is φ = 1915126400.

The previous prime is 7899914527. The next prime is 7899914551. The reversal of 7899914550 is 554199987.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7899914551) by changing a digit.

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 35 ways as a sum of consecutive naturals, for example, 199479 + ... + 235778.

It is an arithmetic number, because the mean of its divisors is an integer number (299094789).

Almost surely, 2^7899914550 is an apocalyptic number.

7899914550 is an abundant number, since it is smaller than the sum of its proper divisors (13634910258).

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

7899914550 is a wasteful number, since it uses less digits than its factorization.

7899914550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 435294 (or 435278 counting only the distinct ones).

The product of its (nonzero) digits is 4082400, while the sum is 57.

The square root of 7899914550 is about 88881.4634780504. The cubic root of 7899914550 is about 1991.6245204653.

The spelling of 7899914550 in words is "seven billion, eight hundred ninety-nine million, nine hundred fourteen thousand, five hundred fifty".