19461242886 has 64 divisors (see below), whose sum is σ = 40085591040. Its totient is φ = 6296209920.

The previous prime is 19461242863. The next prime is 19461242887. The reversal of 19461242886 is 68824216491.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19461242887) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19287150 + ... + 19288158.

It is an arithmetic number, because the mean of its divisors is an integer number (626337360).

Almost surely, 2^19461242886 is an apocalyptic number.

19461242886 is an abundant number, since it is smaller than the sum of its proper divisors (20624348154).

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

19461242886 is a wasteful number, since it uses less digits than its factorization.

19461242886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1661.

The product of its digits is 1327104, while the sum is 51.

The spelling of 19461242886 in words is "nineteen billion, four hundred sixty-one million, two hundred forty-two thousand, eight hundred eighty-six".