6772121105 has 12 divisors (see below), whose sum is σ = 8632698780. Its totient is φ = 5099007744.

The previous prime is 6772121047. The next prime is 6772121123. The reversal of 6772121105 is 5011212776.

It can be written as a sum of positive squares in 6 ways, for example, as 1257127936 + 5514993169 = 35456^2 + 74263^2 .

It is a de Polignac number, because none of the positive numbers 2^k-6772121105 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2341850 + ... + 2344739.

It is an arithmetic number, because the mean of its divisors is an integer number (719391565).

Almost surely, 2^6772121105 is an apocalyptic number.

It is an amenable number.

6772121105 is a deficient number, since it is larger than the sum of its proper divisors (1860577675).

6772121105 is a wasteful number, since it uses less digits than its factorization.

6772121105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4686628 (or 4686611 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 32.

The square root of 6772121105 is about 82292.8982658893. The cubic root of 6772121105 is about 1891.9438307704.

The spelling of 6772121105 in words is "six billion, seven hundred seventy-two million, one hundred twenty-one thousand, one hundred five".