1905490441461 has 16 divisors (see below), whose sum is σ = 2602663882560. Its totient is φ = 1239322999680.

The previous prime is 1905490441433. The next prime is 1905490441483. The reversal of 1905490441461 is 1641440945091.

It is not a de Polignac number, because 1905490441461 - 2⁷ = 1905490441333 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1905490441461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1905490442461) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12269451 + ... + 12423783.

It is an arithmetic number, because the mean of its divisors is an integer number (162666492660).

Almost surely, 2^{1905490441461} is an apocalyptic number.

It is an amenable number.

1905490441461 is a deficient number, since it is larger than the sum of its proper divisors (697173441099).

1905490441461 is a wasteful number, since it uses less digits than its factorization.

1905490441461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254756.

The product of its (nonzero) digits is 622080, while the sum is 48.

The spelling of 1905490441461 in words is "one trillion, nine hundred five billion, four hundred ninety million, four hundred forty-one thousand, four hundred sixty-one".