6890488551 has 6 divisors (see below), whose sum is σ = 9952927920. Its totient is φ = 4593659028.

The previous prime is 6890488543. The next prime is 6890488573. The reversal of 6890488551 is 1558840986.

It is a happy number.

6890488551 is a `hidden beast` number, since 6 + 8 + 9 + 0 + 4 + 88 + 551 = 666.

It is not a de Polignac number, because 6890488551 - 2³ = 6890488543 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6890488351) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 382804911 + ... + 382804928.

It is an arithmetic number, because the mean of its divisors is an integer number (1658821320).

Almost surely, 2^6890488551 is an apocalyptic number.

6890488551 is a deficient number, since it is larger than the sum of its proper divisors (3062439369).

6890488551 is a wasteful number, since it uses less digits than its factorization.

6890488551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 765609845 (or 765609842 counting only the distinct ones).

The product of its (nonzero) digits is 2764800, while the sum is 54.

The square root of 6890488551 is about 83008.9666903522. The cubic root of 6890488551 is about 1902.9030920826.

The spelling of 6890488551 in words is "six billion, eight hundred ninety million, four hundred eighty-eight thousand, five hundred fifty-one".