1009812194752 has 56 divisors (see below), whose sum is σ = 2055844148400. Its totient is φ = 491955695616.

The previous prime is 1009812194707. The next prime is 1009812194761. The reversal of 1009812194752 is 2574912189001.

It is a junction number, because it is equal to n+sod(n) for n = 1009812194696 and 1009812194705.

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, 756627 + ... + 1610002.

It is an arithmetic number, because the mean of its divisors is an integer number (36711502650).

Almost surely, 2^{1009812194752} is an apocalyptic number.

It is an amenable number.

1009812194752 is an abundant number, since it is smaller than the sum of its proper divisors (1046031953648).

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

1009812194752 is a wasteful number, since it uses less digits than its factorization.

1009812194752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2366813 (or 2366803 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 49.

The spelling of 1009812194752 in words is "one trillion, nine billion, eight hundred twelve million, one hundred ninety-four thousand, seven hundred fifty-two".