401175039949 has 2 divisors, whose sum is σ = 401175039950. Its totient is φ = 401175039948.

The previous prime is 401175039929. The next prime is 401175040033. The reversal of 401175039949 is 949930571104.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 272019618025 + 129155421924 = 521555^2 + 359382^2 .

It is a cyclic number.

It is not a de Polignac number, because 401175039949 - 2³³ = 392585105357 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 401175039896 and 401175039905.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (401175039929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200587519974 + 200587519975.

It is an arithmetic number, because the mean of its divisors is an integer number (200587519975).

Almost surely, 2^401175039949 is an apocalyptic number.

It is an amenable number.

401175039949 is a deficient number, since it is larger than the sum of its proper divisors (1).

401175039949 is an equidigital number, since it uses as much as digits as its factorization.

401175039949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1224720, while the sum is 52.

The spelling of 401175039949 in words is "four hundred one billion, one hundred seventy-five million, thirty-nine thousand, nine hundred forty-nine".