5913211891 has 2 divisors, whose sum is σ = 5913211892. Its totient is φ = 5913211890.

The previous prime is 5913211879. The next prime is 5913211897. The reversal of 5913211891 is 1981123195.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5913211891 - 2⁷ = 5913211763 is a prime.

It is not a weakly prime, because it can be changed into another prime (5913211897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2956605945 + 2956605946.

It is an arithmetic number, because the mean of its divisors is an integer number (2956605946).

Almost surely, 2^5913211891 is an apocalyptic number.

5913211891 is a deficient number, since it is larger than the sum of its proper divisors (1).

5913211891 is an equidigital number, since it uses as much as digits as its factorization.

5913211891 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19440, while the sum is 40.

The square root of 5913211891 is about 76897.4114713883. The cubic root of 5913211891 is about 1808.3166477331.

The spelling of 5913211891 in words is "five billion, nine hundred thirteen million, two hundred eleven thousand, eight hundred ninety-one".