6402918387 has 8 divisors (see below), whose sum is σ = 8561410704. Its totient is φ = 4256519168.

The previous prime is 6402918377. The next prime is 6402918391. The reversal of 6402918387 is 7838192046.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6402918387 - 2²⁰ = 6401869811 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6402918307) 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, 3022038 + ... + 3024155.

It is an arithmetic number, because the mean of its divisors is an integer number (1070176338).

Almost surely, 2^6402918387 is an apocalyptic number.

6402918387 is a deficient number, since it is larger than the sum of its proper divisors (2158492317).

6402918387 is a wasteful number, since it uses less digits than its factorization.

6402918387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6046549.

The product of its (nonzero) digits is 580608, while the sum is 48.

The square root of 6402918387 is about 80018.2378398825. The cubic root of 6402918387 is about 1856.9176979046.

The spelling of 6402918387 in words is "six billion, four hundred two million, nine hundred eighteen thousand, three hundred eighty-seven".