401230355615437 has 2 divisors, whose sum is σ = 401230355615438. Its totient is φ = 401230355615436.

The previous prime is 401230355615377. The next prime is 401230355615491. The reversal of 401230355615437 is 734516553032104.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 255939491575881 + 145290864039556 = 15998109^2 + 12053666^2 .

It is a cyclic number.

It is not a de Polignac number, because 401230355615437 - 2²³ = 401230347226829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (401230355115437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200615177807718 + 200615177807719.

It is an arithmetic number, because the mean of its divisors is an integer number (200615177807719).

Almost surely, 2^{401230355615437} is an apocalyptic number.

It is an amenable number.

401230355615437 is a deficient number, since it is larger than the sum of its proper divisors (1).

401230355615437 is an equidigital number, since it uses as much as digits as its factorization.

401230355615437 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536000, while the sum is 49.

The spelling of 401230355615437 in words is "four hundred one trillion, two hundred thirty billion, three hundred fifty-five million, six hundred fifteen thousand, four hundred thirty-seven".