42154262145 has 48 divisors (see below), whose sum is σ = 74464565760. Its totient is φ = 22056008832.

The previous prime is 42154262141. The next prime is 42154262159. The reversal of 42154262145 is 54126245124.

42154262145 is a `hidden beast` number, since 4 + 2 + 15 + 426 + 214 + 5 = 666.

42154262145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 42154262145 - 2² = 42154262141 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (42154262141) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 520372 + ... + 595898.

It is an arithmetic number, because the mean of its divisors is an integer number (1551345120).

Almost surely, 2^42154262145 is an apocalyptic number.

42154262145 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

42154262145 is a deficient number, since it is larger than the sum of its proper divisors (32310303615).

42154262145 is a wasteful number, since it uses less digits than its factorization.

42154262145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75774 (or 75771 counting only the distinct ones).

The product of its digits is 76800, while the sum is 36.

The spelling of 42154262145 in words is "forty-two billion, one hundred fifty-four million, two hundred sixty-two thousand, one hundred forty-five".