401268589279 has 2 divisors, whose sum is σ = 401268589280. Its totient is φ = 401268589278.

The previous prime is 401268589243. The next prime is 401268589297. The reversal of 401268589279 is 972985862104.

Together with next prime (401268589297) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 401268589279 - 2¹⁷ = 401268458207 is a prime.

It is a super-2 number, since 2×401268589279² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (401268589879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200634294639 + 200634294640.

It is an arithmetic number, because the mean of its divisors is an integer number (200634294640).

Almost surely, 2^401268589279 is an apocalyptic number.

401268589279 is a deficient number, since it is larger than the sum of its proper divisors (1).

401268589279 is an equidigital number, since it uses as much as digits as its factorization.

401268589279 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17418240, while the sum is 61.

The spelling of 401268589279 in words is "four hundred one billion, two hundred sixty-eight million, five hundred eighty-nine thousand, two hundred seventy-nine".