1905490441459 has 24 divisors (see below), whose sum is σ = 2214740827728. Its totient is φ = 1625527357440.

The previous prime is 1905490441433. The next prime is 1905490441483. The reversal of 1905490441459 is 9541440945091.

It is not a de Polignac number, because 1905490441459 - 2⁵ = 1905490441427 is a prime.

It is a super-2 number, since 2×1905490441459² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1905490441559) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 182007 + ... + 1960639.

It is an arithmetic number, because the mean of its divisors is an integer number (92280867822).

Almost surely, 2^{1905490441459} is an apocalyptic number.

1905490441459 is a deficient number, since it is larger than the sum of its proper divisors (309250386269).

1905490441459 is a wasteful number, since it uses less digits than its factorization.

1905490441459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1779015 (or 1778998 counting only the distinct ones).

The product of its (nonzero) digits is 4665600, while the sum is 55.

The spelling of 1905490441459 in words is "one trillion, nine hundred five billion, four hundred ninety million, four hundred forty-one thousand, four hundred fifty-nine".