42154262146 has 4 divisors (see below), whose sum is σ = 63231393222. Its totient is φ = 21077131072.

The previous prime is 42154262141. The next prime is 42154262159. The reversal of 42154262146 is 64126245124.

42154262146 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 30272172121 + 11882090025 = 173989^2 + 109005^2 .

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 as a sum of consecutive naturals, namely, 10538565535 + ... + 10538565538.

Almost surely, 2^42154262146 is an apocalyptic number.

42154262146 is a deficient number, since it is larger than the sum of its proper divisors (21077131076).

42154262146 is a wasteful number, since it uses less digits than its factorization.

42154262146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21077131075.

The product of its digits is 92160, while the sum is 37.

The spelling of 42154262146 in words is "forty-two billion, one hundred fifty-four million, two hundred sixty-two thousand, one hundred forty-six".