42378125338919 has 8 divisors (see below), whose sum is σ = 42396276886128. Its totient is φ = 42359977537920.

The previous prime is 42378125338889. The next prime is 42378125338951. The reversal of 42378125338919 is 91983352187324.

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 42378125338919 - 2²⁰ = 42378124290343 is a prime.

It is a super-2 number, since 2×42378125338919² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42378125338319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21810959 + ... + 23674335.

It is an arithmetic number, because the mean of its divisors is an integer number (5299534610766).

Almost surely, 2^{42378125338919} is an apocalyptic number.

42378125338919 is a deficient number, since it is larger than the sum of its proper divisors (18151547209).

42378125338919 is a wasteful number, since it uses less digits than its factorization.

42378125338919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1873105.

The product of its digits is 78382080, while the sum is 65.

The spelling of 42378125338919 in words is "forty-two trillion, three hundred seventy-eight billion, one hundred twenty-five million, three hundred thirty-eight thousand, nine hundred nineteen".