11990534852 has 6 divisors (see below), whose sum is σ = 20983435998. Its totient is φ = 5995267424.

The previous prime is 11990534849. The next prime is 11990534903. The reversal of 11990534852 is 25843509911.

It can be written as a sum of positive squares in only one way, i.e., 11904119236 + 86415616 = 109106^2 + 9296^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11990534797 and 11990534806.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1498816853 + ... + 1498816860.

It is an arithmetic number, because the mean of its divisors is an integer number (3497239333).

Almost surely, 2^11990534852 is an apocalyptic number.

It is an amenable number.

11990534852 is a deficient number, since it is larger than the sum of its proper divisors (8992901146).

11990534852 is a wasteful number, since it uses less digits than its factorization.

11990534852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2997633717 (or 2997633715 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 47.

The spelling of 11990534852 in words is "eleven billion, nine hundred ninety million, five hundred thirty-four thousand, eight hundred fifty-two".