154407543642 has 144 divisors (see below), whose sum is σ = 377766305280. Its totient is φ = 45524698560.

The previous prime is 154407543583. The next prime is 154407543671. The reversal of 154407543642 is 246345704451.

154407543642 is a `hidden beast` number, since 1 + 5 + 4 + 40 + 7 + 543 + 64 + 2 = 666.

154407543642 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×154407543642² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 17704959 + ... + 17713677.

It is an arithmetic number, because the mean of its divisors is an integer number (2623377120).

Almost surely, 2^154407543642 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 154407543642, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (188883152640).

154407543642 is an abundant number, since it is smaller than the sum of its proper divisors (223358761638).

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

154407543642 is a wasteful number, since it uses less digits than its factorization.

154407543642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8969 (or 8955 counting only the distinct ones).

The product of its (nonzero) digits is 1612800, while the sum is 45.

The spelling of 154407543642 in words is "one hundred fifty-four billion, four hundred seven million, five hundred forty-three thousand, six hundred forty-two".