6390860495 has 4 divisors (see below), whose sum is σ = 7669032600. Its totient is φ = 5112688392.

The previous prime is 6390860491. The next prime is 6390860503. The reversal of 6390860495 is 5940680936.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6390860495 - 2² = 6390860491 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6390860491) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 639086045 + ... + 639086054.

It is an arithmetic number, because the mean of its divisors is an integer number (1917258150).

Almost surely, 2^6390860495 is an apocalyptic number.

6390860495 is a deficient number, since it is larger than the sum of its proper divisors (1278172105).

6390860495 is a wasteful number, since it uses less digits than its factorization.

6390860495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1278172104.

The product of its (nonzero) digits is 1399680, while the sum is 50.

The square root of 6390860495 is about 79942.8576859747. The cubic root of 6390860495 is about 1855.7513244065.

The spelling of 6390860495 in words is "six billion, three hundred ninety million, eight hundred sixty thousand, four hundred ninety-five".