3775260946991 has 2 divisors, whose sum is σ = 3775260946992. Its totient is φ = 3775260946990.

The previous prime is 3775260946841. The next prime is 3775260946993. The reversal of 3775260946991 is 1996490625773.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3775260946991 is a prime.

It is a super-2 number, since 2×3775260946991² (a number of 26 digits) contains 22 as substring.

Together with 3775260946993, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3775260946993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1887630473495 + 1887630473496.

It is an arithmetic number, because the mean of its divisors is an integer number (1887630473496).

Almost surely, 2^{3775260946991} is an apocalyptic number.

3775260946991 is a deficient number, since it is larger than the sum of its proper divisors (1).

3775260946991 is an equidigital number, since it uses as much as digits as its factorization.

3775260946991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 154314720, while the sum is 68.

The spelling of 3775260946991 in words is "three trillion, seven hundred seventy-five billion, two hundred sixty million, nine hundred forty-six thousand, nine hundred ninety-one".