2757672772121 has 2 divisors, whose sum is σ = 2757672772122. Its totient is φ = 2757672772120.

The previous prime is 2757672772073. The next prime is 2757672772193. The reversal of 2757672772121 is 1212772767572.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2073312010000 + 684360762121 = 1439900^2 + 827261^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2757672772121 is a prime.

It is not a weakly prime, because it can be changed into another prime (2757672774121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1378836386060 + 1378836386061.

It is an arithmetic number, because the mean of its divisors is an integer number (1378836386061).

Almost surely, 2^{2757672772121} is an apocalyptic number.

It is an amenable number.

2757672772121 is a deficient number, since it is larger than the sum of its proper divisors (1).

2757672772121 is an equidigital number, since it uses as much as digits as its factorization.

2757672772121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8067360, while the sum is 56.

The spelling of 2757672772121 in words is "two trillion, seven hundred fifty-seven billion, six hundred seventy-two million, seven hundred seventy-two thousand, one hundred twenty-one".