1813770990984 has 16 divisors (see below), whose sum is σ = 4534427477520. Its totient is φ = 604590330320.

The previous prime is 1813770990943. The next prime is 1813770991001. The reversal of 1813770990984 is 4890990773181.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37786895622 + ... + 37786895669.

It is an arithmetic number, because the mean of its divisors is an integer number (283401717345).

Almost surely, 2^{1813770990984} is an apocalyptic number.

It is an amenable number.

1813770990984 is an abundant number, since it is smaller than the sum of its proper divisors (2720656486536).

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

1813770990984 is a wasteful number, since it uses less digits than its factorization.

1813770990984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75573791300 (or 75573791296 counting only the distinct ones).

The product of its (nonzero) digits is 27433728, while the sum is 66.

The spelling of 1813770990984 in words is "one trillion, eight hundred thirteen billion, seven hundred seventy million, nine hundred ninety thousand, nine hundred eighty-four".