401401502629 has 2 divisors, whose sum is σ = 401401502630. Its totient is φ = 401401502628.

The previous prime is 401401502617. The next prime is 401401502729. The reversal of 401401502629 is 926205104104.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 220158024100 + 181243478529 = 469210^2 + 425727^2 .

It is a cyclic number.

It is not a de Polignac number, because 401401502629 - 2¹⁷ = 401401371557 is a prime.

It is a super-2 number, since 2×401401502629² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 401401502594 and 401401502603.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (401401502609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200700751314 + 200700751315.

It is an arithmetic number, because the mean of its divisors is an integer number (200700751315).

Almost surely, 2^401401502629 is an apocalyptic number.

It is an amenable number.

401401502629 is a deficient number, since it is larger than the sum of its proper divisors (1).

401401502629 is an equidigital number, since it uses as much as digits as its factorization.

401401502629 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17280, while the sum is 34.

The spelling of 401401502629 in words is "four hundred one billion, four hundred one million, five hundred two thousand, six hundred twenty-nine".