42154655904 has 96 divisors (see below), whose sum is σ = 123244188480. Its totient is φ = 14018054400.

The previous prime is 42154655861. The next prime is 42154655953. The reversal of 42154655904 is 40955645124.

42154655904 is a `hidden beast` number, since 4 + 2 + 1 + 54 + 6 + 5 + 590 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a self number, because there is not a number n which added to its sum of digits gives 42154655904.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 305799 + ... + 421689.

It is an arithmetic number, because the mean of its divisors is an integer number (1283793630).

Almost surely, 2^42154655904 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42154655904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61622094240).

42154655904 is an abundant number, since it is smaller than the sum of its proper divisors (81089532576).

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

42154655904 is a wasteful number, since it uses less digits than its factorization.

42154655904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116331 (or 116317 counting only the distinct ones).

The product of its (nonzero) digits is 864000, while the sum is 45.

The spelling of 42154655904 in words is "forty-two billion, one hundred fifty-four million, six hundred fifty-five thousand, nine hundred four".