6427990893 has 8 divisors (see below), whose sum is σ = 8691368256. Its totient is φ = 4224970400.

The previous prime is 6427990879. The next prime is 6427990897. The reversal of 6427990893 is 3980997246.

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 6427990893 - 2⁸ = 6427990637 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6427990897) 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, 15088968 + ... + 15089393.

It is an arithmetic number, because the mean of its divisors is an integer number (1086421032).

Almost surely, 2^6427990893 is an apocalyptic number.

It is an amenable number.

6427990893 is a deficient number, since it is larger than the sum of its proper divisors (2263377363).

6427990893 is a wasteful number, since it uses less digits than its factorization.

6427990893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30178435.

The product of its (nonzero) digits is 5878656, while the sum is 57.

The square root of 6427990893 is about 80174.7522166424. The cubic root of 6427990893 is about 1859.3383098409.

The spelling of 6427990893 in words is "six billion, four hundred twenty-seven million, nine hundred ninety thousand, eight hundred ninety-three".