6746979121 has 4 divisors (see below), whose sum is σ = 6832384000. Its totient is φ = 6661574244.

The previous prime is 6746979101. The next prime is 6746979133. The reversal of 6746979121 is 1219796476.

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 not a de Polignac number, because 6746979121 - 2¹³ = 6746970929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6746979101) 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, 42702321 + ... + 42702478.

It is an arithmetic number, because the mean of its divisors is an integer number (1708096000).

Almost surely, 2^6746979121 is an apocalyptic number.

It is an amenable number.

6746979121 is a deficient number, since it is larger than the sum of its proper divisors (85404879).

6746979121 is an equidigital number, since it uses as much as digits as its factorization.

6746979121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85404878.

The product of its digits is 1143072, while the sum is 52.

The square root of 6746979121 is about 82139.9970842464. The cubic root of 6746979121 is about 1889.5996017335.

The spelling of 6746979121 in words is "six billion, seven hundred forty-six million, nine hundred seventy-nine thousand, one hundred twenty-one".