801958533091 has 2 divisors, whose sum is σ = 801958533092. Its totient is φ = 801958533090.

The previous prime is 801958533059. The next prime is 801958533127. The reversal of 801958533091 is 190335859108.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 801958533091 - 2⁵ = 801958533059 is a prime.

It is not a weakly prime, because it can be changed into another prime (801958533041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 400979266545 + 400979266546.

It is an arithmetic number, because the mean of its divisors is an integer number (400979266546).

Almost surely, 2^801958533091 is an apocalyptic number.

801958533091 is a deficient number, since it is larger than the sum of its proper divisors (1).

801958533091 is an equidigital number, since it uses as much as digits as its factorization.

801958533091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1166400, while the sum is 52.

The spelling of 801958533091 in words is "eight hundred one billion, nine hundred fifty-eight million, five hundred thirty-three thousand, ninety-one".