1147985513884 has 12 divisors (see below), whose sum is σ = 2191608708408. Its totient is φ = 521811597200.

The previous prime is 1147985513837. The next prime is 1147985513893. The reversal of 1147985513884 is 4883155897411.

It is a congruent 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, 13045289887 + ... + 13045289974.

It is an arithmetic number, because the mean of its divisors is an integer number (182634059034).

Almost surely, 2^{1147985513884} is an apocalyptic number.

It is an amenable number.

1147985513884 is a deficient number, since it is larger than the sum of its proper divisors (1043623194524).

1147985513884 is a wasteful number, since it uses less digits than its factorization.

1147985513884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26090579876 (or 26090579874 counting only the distinct ones).

The product of its digits is 38707200, while the sum is 64.

The spelling of 1147985513884 in words is "one trillion, one hundred forty-seven billion, nine hundred eighty-five million, five hundred thirteen thousand, eight hundred eighty-four".