42540523154 has 8 divisors (see below), whose sum is σ = 63812169660. Its totient is φ = 21269799936.

The previous prime is 42540523117. The next prime is 42540523177. The reversal of 42540523154 is 45132504524.

It can be written as a sum of positive squares in 2 ways, for example, as 42537000025 + 3523129 = 206245^2 + 1877^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×42540523154² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101039 + ... + 308690.

Almost surely, 2^42540523154 is an apocalyptic number.

42540523154 is a deficient number, since it is larger than the sum of its proper divisors (21271646506).

42540523154 is a wasteful number, since it uses less digits than its factorization.

42540523154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 461644.

The product of its (nonzero) digits is 96000, while the sum is 35.

The spelling of 42540523154 in words is "forty-two billion, five hundred forty million, five hundred twenty-three thousand, one hundred fifty-four".