11532191854 has 16 divisors (see below), whose sum is σ = 18212688000. Its totient is φ = 5461428024.

The previous prime is 11532191849. The next prime is 11532191897. The reversal of 11532191854 is 45819123511.

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, 158197 + ... + 219295.

It is an arithmetic number, because the mean of its divisors is an integer number (1138293000).

Almost surely, 2^11532191854 is an apocalyptic number.

11532191854 is a deficient number, since it is larger than the sum of its proper divisors (6680496146).

11532191854 is a wasteful number, since it uses less digits than its factorization.

11532191854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66087.

The product of its digits is 43200, while the sum is 40.

The spelling of 11532191854 in words is "eleven billion, five hundred thirty-two million, one hundred ninety-one thousand, eight hundred fifty-four".