1892840789772 has 30 divisors (see below), whose sum is σ = 4948259719788. Its totient is φ = 630946929816.

The previous prime is 1892840789761. The next prime is 1892840789849. The reversal of 1892840789772 is 2779870482981.

It is a self number, because there is not a number n which added to its sum of digits gives 1892840789772.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 2921050278 + ... + 2921050925.

Almost surely, 2^{1892840789772} is an apocalyptic number.

1892840789772 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1892840789772 is an abundant number, since it is smaller than the sum of its proper divisors (3055418930016).

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

1892840789772 is a wasteful number, since it uses less digits than its factorization.

1892840789772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5842101219 (or 5842101208 counting only the distinct ones).

The product of its (nonzero) digits is 227598336, while the sum is 72.

The spelling of 1892840789772 in words is "one trillion, eight hundred ninety-two billion, eight hundred forty million, seven hundred eighty-nine thousand, seven hundred seventy-two".