6121979001 has 16 divisors (see below), whose sum is σ = 9290809920. Its totient is φ = 3981774240.

The previous prime is 6121978997. The next prime is 6121979027. The reversal of 6121979001 is 1009791216.

It is not a de Polignac number, because 6121979001 - 2² = 6121978997 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (6121972001) 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, 2764015 + ... + 2766228.

It is an arithmetic number, because the mean of its divisors is an integer number (580675620).

Almost surely, 2^6121979001 is an apocalyptic number.

It is an amenable number.

6121979001 is a deficient number, since it is larger than the sum of its proper divisors (3168830919).

6121979001 is a wasteful number, since it uses less digits than its factorization.

6121979001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5530293 (or 5530287 counting only the distinct ones).

The product of its (nonzero) digits is 6804, while the sum is 36.

The square root of 6121979001 is about 78243.0763774022. The cubic root of 6121979001 is about 1829.3519957766.

The spelling of 6121979001 in words is "six billion, one hundred twenty-one million, nine hundred seventy-nine thousand, one".