42154242115 has 8 divisors (see below), whose sum is σ = 50607398160. Its totient is φ = 33708521952.

The previous prime is 42154242019. The next prime is 42154242149. The reversal of 42154242115 is 51124245124.

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

It is a cyclic number.

It is not a de Polignac number, because 42154242115 - 2²⁵ = 42120687683 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1846489 + ... + 1869178.

It is an arithmetic number, because the mean of its divisors is an integer number (6325924770).

Almost surely, 2^42154242115 is an apocalyptic number.

42154242115 is a deficient number, since it is larger than the sum of its proper divisors (8453156045).

42154242115 is a wasteful number, since it uses less digits than its factorization.

42154242115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3717941.

The product of its digits is 12800, while the sum is 31.

Adding to 42154242115 its reverse (51124245124), we get a palindrome (93278487239).

The spelling of 42154242115 in words is "forty-two billion, one hundred fifty-four million, two hundred forty-two thousand, one hundred fifteen".