42873364873647 has 24 divisors (see below), whose sum is σ = 77209176570240. Its totient is φ = 22271877856080.

The previous prime is 42873364873637. The next prime is 42873364873673. The reversal of 42873364873647 is 74637846337824.

42873364873647 is a `hidden beast` number, since 4 + 2 + 8 + 73 + 3 + 6 + 487 + 36 + 47 = 666.

It is not a de Polignac number, because 42873364873647 - 2¹² = 42873364869551 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42873364873637) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30933162997 + ... + 30933164382.

It is an arithmetic number, because the mean of its divisors is an integer number (3217049023760).

Almost surely, 2^{42873364873647} is an apocalyptic number.

42873364873647 is a deficient number, since it is larger than the sum of its proper divisors (34335811696593).

42873364873647 is a wasteful number, since it uses less digits than its factorization.

42873364873647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61866327403 (or 61866327400 counting only the distinct ones).

The product of its digits is 2731180032, while the sum is 72.

The spelling of 42873364873647 in words is "forty-two trillion, eight hundred seventy-three billion, three hundred sixty-four million, eight hundred seventy-three thousand, six hundred forty-seven".