6199613897 has 4 divisors (see below), whose sum is σ = 6201478416. Its totient is φ = 6197749380.

The previous prime is 6199613879. The next prime is 6199613933. The reversal of 6199613897 is 7983169916.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6199613897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6199613297) 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, 927263 + ... + 933924.

It is an arithmetic number, because the mean of its divisors is an integer number (1550369604).

Almost surely, 2^6199613897 is an apocalyptic number.

It is an amenable number.

6199613897 is a deficient number, since it is larger than the sum of its proper divisors (1864519).

6199613897 is a wasteful number, since it uses less digits than its factorization.

6199613897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1864518.

The product of its digits is 4408992, while the sum is 59.

The square root of 6199613897 is about 78737.6269454446. The cubic root of 6199613897 is about 1837.0524144821.

The spelling of 6199613897 in words is "six billion, one hundred ninety-nine million, six hundred thirteen thousand, eight hundred ninety-seven".