6404758542 has 72 divisors (see below), whose sum is σ = 17384375736. Its totient is φ = 1689164064.

The previous prime is 6404758523. The next prime is 6404758561. The reversal of 6404758542 is 2458574046.

6404758542 is a `hidden beast` number, since 64 + 0 + 4 + 7 + 585 + 4 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (6404758523) and next prime (6404758561).

It is a congruent number.

It is an unprimeable number.

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 35 ways as a sum of consecutive naturals, for example, 267828 + ... + 290759.

It is an arithmetic number, because the mean of its divisors is an integer number (241449663).

Almost surely, 2^6404758542 is an apocalyptic number.

6404758542 is an abundant number, since it is smaller than the sum of its proper divisors (10979617194).

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

6404758542 is a wasteful number, since it uses less digits than its factorization.

6404758542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 558622 (or 558612 counting only the distinct ones).

The product of its (nonzero) digits is 1075200, while the sum is 45.

The square root of 6404758542 is about 80029.7353613018. The cubic root of 6404758542 is about 1857.0955693527.

The spelling of 6404758542 in words is "six billion, four hundred four million, seven hundred fifty-eight thousand, five hundred forty-two".