6404142758 has 16 divisors (see below), whose sum is σ = 10353918960. Its totient is φ = 2953253856.

The previous prime is 6404142757. The next prime is 6404142803. The reversal of 6404142758 is 8572414046.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6404142757) 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, 72893 + ... + 134616.

It is an arithmetic number, because the mean of its divisors is an integer number (647119935).

Almost surely, 2^6404142758 is an apocalyptic number.

6404142758 is a deficient number, since it is larger than the sum of its proper divisors (3949776202).

6404142758 is a wasteful number, since it uses less digits than its factorization.

6404142758 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208711.

The product of its (nonzero) digits is 215040, while the sum is 41.

The square root of 6404142758 is about 80025.8880488058. Note that the first 3 decimals coincide. The cubic root of 6404142758 is about 1857.0360507733.

The spelling of 6404142758 in words is "six billion, four hundred four million, one hundred forty-two thousand, seven hundred fifty-eight".