401263644307 has 2 divisors, whose sum is σ = 401263644308. Its totient is φ = 401263644306.

The previous prime is 401263644253. The next prime is 401263644329. The reversal of 401263644307 is 703446362104.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 401263644307 - 2¹¹ = 401263642259 is a prime.

It is a super-2 number, since 2×401263644307² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 401263644307.

It is not a weakly prime, because it can be changed into another prime (401263648307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200631822153 + 200631822154.

It is an arithmetic number, because the mean of its divisors is an integer number (200631822154).

Almost surely, 2^401263644307 is an apocalyptic number.

401263644307 is a deficient number, since it is larger than the sum of its proper divisors (1).

401263644307 is an equidigital number, since it uses as much as digits as its factorization.

401263644307 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 290304, while the sum is 40.

The spelling of 401263644307 in words is "four hundred one billion, two hundred sixty-three million, six hundred forty-four thousand, three hundred seven".