42564199380787 has 16 divisors (see below), whose sum is σ = 49686013504512. Its totient is φ = 35702883138240.

The previous prime is 42564199380767. The next prime is 42564199380811. The reversal of 42564199380787 is 78708399146524.

It is a cyclic number.

It is not a de Polignac number, because 42564199380787 - 2¹⁵ = 42564199348019 is a prime.

It is a super-2 number, since 2×42564199380787² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42564199380727) 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, 5463289 + ... + 10722682.

It is an arithmetic number, because the mean of its divisors is an integer number (3105375844032).

It is a 1-persistent number, because it is pandigital, but 2⋅42564199380787 = 85128398761574 is not.

Almost surely, 2^{42564199380787} is an apocalyptic number.

42564199380787 is a gapful number since it is divisible by the number (47) formed by its first and last digit.

42564199380787 is a deficient number, since it is larger than the sum of its proper divisors (7121814123725).

42564199380787 is a wasteful number, since it uses less digits than its factorization.

42564199380787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16194018.

The product of its (nonzero) digits is 731566080, while the sum is 73.

The spelling of 42564199380787 in words is "forty-two trillion, five hundred sixty-four billion, one hundred ninety-nine million, three hundred eighty thousand, seven hundred eighty-seven".