154486189992 has 16 divisors (see below), whose sum is σ = 386215475040. Its totient is φ = 51495396656.

The previous prime is 154486189939. The next prime is 154486189993. The reversal of 154486189992 is 299981684451.

154486189992 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (154486189993) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3218462268 + ... + 3218462315.

It is an arithmetic number, because the mean of its divisors is an integer number (24138467190).

Almost surely, 2^154486189992 is an apocalyptic number.

154486189992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

154486189992 is an abundant number, since it is smaller than the sum of its proper divisors (231729285048).

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

154486189992 is a wasteful number, since it uses less digits than its factorization.

154486189992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6436924592 (or 6436924588 counting only the distinct ones).

The product of its digits is 44789760, while the sum is 66.

The spelling of 154486189992 in words is "one hundred fifty-four billion, four hundred eighty-six million, one hundred eighty-nine thousand, nine hundred ninety-two".