42117151439 has 16 divisors (see below), whose sum is σ = 48380640000. Its totient is φ = 36260809920.

The previous prime is 42117151429. The next prime is 42117151451. The reversal of 42117151439 is 93415171124.

It is not a de Polignac number, because 42117151439 - 2²⁴ = 42100374223 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42117151409) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 610787 + ... + 676235.

It is an arithmetic number, because the mean of its divisors is an integer number (3023790000).

Almost surely, 2^42117151439 is an apocalyptic number.

42117151439 is a deficient number, since it is larger than the sum of its proper divisors (6263488561).

42117151439 is a wasteful number, since it uses less digits than its factorization.

42117151439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68558.

The product of its digits is 30240, while the sum is 38.

The spelling of 42117151439 in words is "forty-two billion, one hundred seventeen million, one hundred fifty-one thousand, four hundred thirty-nine".