6177890122891 has 2 divisors, whose sum is σ = 6177890122892. Its totient is φ = 6177890122890.

The previous prime is 6177890122871. The next prime is 6177890122909. The reversal of 6177890122891 is 1982210987716.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6177890122891 - 2¹³ = 6177890114699 is a prime.

It is not a weakly prime, because it can be changed into another prime (6177890122801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3088945061445 + 3088945061446.

It is an arithmetic number, because the mean of its divisors is an integer number (3088945061446).

Almost surely, 2^{6177890122891} is an apocalyptic number.

6177890122891 is a deficient number, since it is larger than the sum of its proper divisors (1).

6177890122891 is an equidigital number, since it uses as much as digits as its factorization.

6177890122891 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6096384, while the sum is 61.

The spelling of 6177890122891 in words is "six trillion, one hundred seventy-seven billion, eight hundred ninety million, one hundred twenty-two thousand, eight hundred ninety-one".