768998550 has 24 divisors (see below), whose sum is σ = 1907116776. Its totient is φ = 205066240.

The previous prime is 768998521. The next prime is 768998557. The reversal of 768998550 is 55899867.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (768998557) 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 11 ways as a sum of consecutive naturals, for example, 2563179 + ... + 2563478.

It is an arithmetic number, because the mean of its divisors is an integer number (79463199).

Almost surely, 2^768998550 is an apocalyptic number.

768998550 is an abundant number, since it is smaller than the sum of its proper divisors (1138118226).

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

768998550 is a wasteful number, since it uses less digits than its factorization.

768998550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5126672 (or 5126667 counting only the distinct ones).

The product of its (nonzero) digits is 5443200, while the sum is 57.

The square root of 768998550 is about 27730.8231035431. The cubic root of 768998550 is about 916.1681160449.

The spelling of 768998550 in words is "seven hundred sixty-eight million, nine hundred ninety-eight thousand, five hundred fifty".