6400759698 has 16 divisors (see below), whose sum is σ = 14223910560. Its totient is φ = 2133586548.

The previous prime is 6400759697. The next prime is 6400759733. The reversal of 6400759698 is 8969570046.

6400759698 is a `hidden beast` number, since 6 + 40 + 0 + 7 + 596 + 9 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54), and also a Moran number because the ratio is a prime number: 118532587 = 6400759698 / (6 + 4 + 0 + 0 + 7 + 5 + 9 + 6 + 9 + 8).

It is not an unprimeable number, because it can be changed into a prime (6400759693) 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 7 ways as a sum of consecutive naturals, for example, 59266240 + ... + 59266347.

It is an arithmetic number, because the mean of its divisors is an integer number (888994410).

Almost surely, 2^6400759698 is an apocalyptic number.

6400759698 is an abundant number, since it is smaller than the sum of its proper divisors (7823150862).

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

6400759698 is a wasteful number, since it uses less digits than its factorization.

6400759698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118532598 (or 118532592 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 54.

The square root of 6400759698 is about 80004.7479716048. The cubic root of 6400759698 is about 1856.7089931584.

The spelling of 6400759698 in words is "six billion, four hundred million, seven hundred fifty-nine thousand, six hundred ninety-eight".