6490178568 has 32 divisors (see below), whose sum is σ = 18028274400. Its totient is φ = 2163392784.

The previous prime is 6490178567. The next prime is 6490178581. The reversal of 6490178568 is 8658710946.

6490178568 is a `hidden beast` number, since 6 + 4 + 9 + 0 + 1 + 78 + 568 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (6490178567) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15023346 + ... + 15023777.

It is an arithmetic number, because the mean of its divisors is an integer number (563383575).

Almost surely, 2^6490178568 is an apocalyptic number.

It is an amenable number.

6490178568 is an abundant number, since it is smaller than the sum of its proper divisors (11538095832).

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

6490178568 is a wasteful number, since it uses less digits than its factorization.

6490178568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30047138 (or 30047128 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 54.

The square root of 6490178568 is about 80561.6445214471. The cubic root of 6490178568 is about 1865.3151403671.

The spelling of 6490178568 in words is "six billion, four hundred ninety million, one hundred seventy-eight thousand, five hundred sixty-eight".