427190717517 has 8 divisors (see below), whose sum is σ = 569645860896. Its totient is φ = 284764692912.

The previous prime is 427190717491. The next prime is 427190717519. The reversal of 427190717517 is 715717091724.

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

It is not a de Polignac number, because 427190717517 - 2³⁴ = 410010848333 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 427190717517.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427190717519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7245438 + ... + 7304159.

It is an arithmetic number, because the mean of its divisors is an integer number (71205732612).

Almost surely, 2^427190717517 is an apocalyptic number.

It is an amenable number.

427190717517 is a deficient number, since it is larger than the sum of its proper divisors (142455143379).

427190717517 is a wasteful number, since it uses less digits than its factorization.

427190717517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14559387.

The product of its (nonzero) digits is 864360, while the sum is 51.

The spelling of 427190717517 in words is "four hundred twenty-seven billion, one hundred ninety million, seven hundred seventeen thousand, five hundred seventeen".