1903187464494 has 16 divisors (see below), whose sum is σ = 3811883439360. Its totient is φ = 633477736440.

The previous prime is 1903187464489. The next prime is 1903187464513. The reversal of 1903187464494 is 4944647813091.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 229516774 + ... + 229525065.

It is an arithmetic number, because the mean of its divisors is an integer number (238242714960).

Almost surely, 2^{1903187464494} is an apocalyptic number.

1903187464494 is an abundant number, since it is smaller than the sum of its proper divisors (1908695974866).

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

1903187464494 is a wasteful number, since it uses less digits than its factorization.

1903187464494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 459042535.

The product of its (nonzero) digits is 20901888, while the sum is 60.

The spelling of 1903187464494 in words is "one trillion, nine hundred three billion, one hundred eighty-seven million, four hundred sixty-four thousand, four hundred ninety-four".