1899742977792 has 108 divisors (see below), whose sum is σ = 5975375364504. Its totient is φ = 575679682560.

The previous prime is 1899742977763. The next prime is 1899742977901. The reversal of 1899742977792 is 2977792479981.

1899742977792 is a `hidden beast` number, since 18 + 9 + 97 + 429 + 7 + 7 + 7 + 92 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37453803 + ... + 37504490.

Almost surely, 2^{1899742977792} is an apocalyptic number.

1899742977792 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1899742977792 is an abundant number, since it is smaller than the sum of its proper divisors (4075632386712).

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

1899742977792 is a wasteful number, since it uses less digits than its factorization.

1899742977792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74958326 (or 74958309 counting only the distinct ones).

The product of its digits is 2016379008, while the sum is 81.

The spelling of 1899742977792 in words is "one trillion, eight hundred ninety-nine billion, seven hundred forty-two million, nine hundred seventy-seven thousand, seven hundred ninety-two".