6390136514 has 16 divisors (see below), whose sum is σ = 9686353248. Its totient is φ = 3161423712.

The previous prime is 6390136507. The next prime is 6390136517. The reversal of 6390136514 is 4156310936.

It is not an unprimeable number, because it can be changed into a prime (6390136517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 165977 + ... + 200819.

It is an arithmetic number, because the mean of its divisors is an integer number (605397078).

Almost surely, 2^6390136514 is an apocalyptic number.

6390136514 is a deficient number, since it is larger than the sum of its proper divisors (3296216734).

6390136514 is a wasteful number, since it uses less digits than its factorization.

6390136514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35809.

The product of its (nonzero) digits is 58320, while the sum is 38.

The square root of 6390136514 is about 79938.3294421393. The cubic root of 6390136514 is about 1855.6812462360.

The spelling of 6390136514 in words is "six billion, three hundred ninety million, one hundred thirty-six thousand, five hundred fourteen".