801958405247 has 2 divisors, whose sum is σ = 801958405248. Its totient is φ = 801958405246.

The previous prime is 801958405211. The next prime is 801958405291. The reversal of 801958405247 is 742504859108.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 801958405247 - 2²² = 801954210943 is a prime.

It is a super-2 number, since 2×801958405247² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (801958405207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 400979202623 + 400979202624.

It is an arithmetic number, because the mean of its divisors is an integer number (400979202624).

Almost surely, 2^801958405247 is an apocalyptic number.

801958405247 is a deficient number, since it is larger than the sum of its proper divisors (1).

801958405247 is an equidigital number, since it uses as much as digits as its factorization.

801958405247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3225600, while the sum is 53.

The spelling of 801958405247 in words is "eight hundred one billion, nine hundred fifty-eight million, four hundred five thousand, two hundred forty-seven".