401251130552449 has 2 divisors, whose sum is σ = 401251130552450. Its totient is φ = 401251130552448.

The previous prime is 401251130552407. The next prime is 401251130552453. The reversal of 401251130552449 is 944255031152104.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 249916355240049 + 151334775312400 = 15808743^2 + 12301820^2 .

It is a cyclic number.

It is not a de Polignac number, because 401251130552449 - 2²⁹ = 401250593681537 is a prime.

It is a super-2 number, since 2×401251130552449² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 401251130552399 and 401251130552408.

It is not a weakly prime, because it can be changed into another prime (401251130552149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200625565276224 + 200625565276225.

It is an arithmetic number, because the mean of its divisors is an integer number (200625565276225).

Almost surely, 2^{401251130552449} is an apocalyptic number.

It is an amenable number.

401251130552449 is a deficient number, since it is larger than the sum of its proper divisors (1).

401251130552449 is an equidigital number, since it uses as much as digits as its factorization.

401251130552449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864000, while the sum is 46.

The spelling of 401251130552449 in words is "four hundred one trillion, two hundred fifty-one billion, one hundred thirty million, five hundred fifty-two thousand, four hundred forty-nine".