6394119991 has 16 divisors (see below), whose sum is σ = 7645478400. Its totient is φ = 5228502048.

The previous prime is 6394119983. The next prime is 6394120001. The reversal of 6394119991 is 1999114936.

It is not a de Polignac number, because 6394119991 - 2³ = 6394119983 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6394119691) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8625 + ... + 113413.

It is an arithmetic number, because the mean of its divisors is an integer number (477842400).

Almost surely, 2^6394119991 is an apocalyptic number.

6394119991 is a deficient number, since it is larger than the sum of its proper divisors (1251358409).

6394119991 is a wasteful number, since it uses less digits than its factorization.

6394119991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105198.

The product of its digits is 472392, while the sum is 52.

The square root of 6394119991 is about 79963.2414988287. The cubic root of 6394119991 is about 1856.0667637211.

The spelling of 6394119991 in words is "six billion, three hundred ninety-four million, one hundred nineteen thousand, nine hundred ninety-one".