401797884973 has 2 divisors, whose sum is σ = 401797884974. Its totient is φ = 401797884972.

The previous prime is 401797884967. The next prime is 401797884977. The reversal of 401797884973 is 379488797104.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 400514311044 + 1283573929 = 632862^2 + 35827^2 .

It is a cyclic number.

It is not a de Polignac number, because 401797884973 - 2²⁹ = 401261014061 is a prime.

It is a super-2 number, since 2×401797884973² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 401797884899 and 401797884908.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (401797884977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200898942486 + 200898942487.

It is an arithmetic number, because the mean of its divisors is an integer number (200898942487).

Almost surely, 2^401797884973 is an apocalyptic number.

It is an amenable number.

401797884973 is a deficient number, since it is larger than the sum of its proper divisors (1).

401797884973 is an equidigital number, since it uses as much as digits as its factorization.

401797884973 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 85349376, while the sum is 67.

The spelling of 401797884973 in words is "four hundred one billion, seven hundred ninety-seven million, eight hundred eighty-four thousand, nine hundred seventy-three".