401259954544 has 20 divisors (see below), whose sum is σ = 818359118440. Its totient is φ = 190070504640.

The previous prime is 401259954539. The next prime is 401259954653. The reversal of 401259954544 is 445459952104.

It is a super-2 number, since 2×401259954544² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 401259954491 and 401259954500.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 659966727 + ... + 659967334.

It is an arithmetic number, because the mean of its divisors is an integer number (40917955922).

Almost surely, 2^401259954544 is an apocalyptic number.

It is an amenable number.

401259954544 is an abundant number, since it is smaller than the sum of its proper divisors (417099163896).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

401259954544 is a wasteful number, since it uses less digits than its factorization.

401259954544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1319934088 (or 1319934082 counting only the distinct ones).

The product of its (nonzero) digits is 5184000, while the sum is 52.

The spelling of 401259954544 in words is "four hundred one billion, two hundred fifty-nine million, nine hundred fifty-four thousand, five hundred forty-four".