42193478287 has 8 divisors (see below), whose sum is σ = 44834440032. Its totient is φ = 39570182400.

The previous prime is 42193478267. The next prime is 42193478309. The reversal of 42193478287 is 78287439124.

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 42193478287 - 2²³ = 42185089679 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 (42193478267) 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, 4411539 + ... + 4421092.

It is an arithmetic number, because the mean of its divisors is an integer number (5604305004).

Almost surely, 2^42193478287 is an apocalyptic number.

42193478287 is a deficient number, since it is larger than the sum of its proper divisors (2640961745).

42193478287 is a wasteful number, since it uses less digits than its factorization.

42193478287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8832929.

The product of its digits is 5419008, while the sum is 55.

The spelling of 42193478287 in words is "forty-two billion, one hundred ninety-three million, four hundred seventy-eight thousand, two hundred eighty-seven".