611121777907 has 2 divisors, whose sum is σ = 611121777908. Its totient is φ = 611121777906.

The previous prime is 611121777857. The next prime is 611121777913. The reversal of 611121777907 is 709777121116.

611121777907 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 611121777907 - 2³⁹ = 61365964019 is a prime.

It is not a weakly prime, because it can be changed into another prime (611121777947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 305560888953 + 305560888954.

It is an arithmetic number, because the mean of its divisors is an integer number (305560888954).

Almost surely, 2^611121777907 is an apocalyptic number.

611121777907 is a deficient number, since it is larger than the sum of its proper divisors (1).

611121777907 is an equidigital number, since it uses as much as digits as its factorization.

611121777907 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 259308, while the sum is 49.

The spelling of 611121777907 in words is "six hundred eleven billion, one hundred twenty-one million, seven hundred seventy-seven thousand, nine hundred seven".