542173026517 has 8 divisors (see below), whose sum is σ = 562030340256. Its totient is φ = 522589606992.

The previous prime is 542173026497. The next prime is 542173026547. The reversal of 542173026517 is 715620371245.

It is a happy number.

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 542173026517 - 2³¹ = 540025542869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542173026547) 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, 68469523 + ... + 68477440.

It is an arithmetic number, because the mean of its divisors is an integer number (70253792532).

Almost surely, 2^542173026517 is an apocalyptic number.

It is an amenable number.

542173026517 is a deficient number, since it is larger than the sum of its proper divisors (19857313739).

542173026517 is a wasteful number, since it uses less digits than its factorization.

542173026517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136947107.

The product of its (nonzero) digits is 352800, while the sum is 43.

The spelling of 542173026517 in words is "five hundred forty-two billion, one hundred seventy-three million, twenty-six thousand, five hundred seventeen".