8400042375345 has 48 divisors (see below), whose sum is σ = 14587567712640. Its totient is φ = 4471564635648.

The previous prime is 8400042375293. The next prime is 8400042375367. The reversal of 8400042375345 is 5435732400048.

8400042375345 is a `hidden beast` number, since 8 + 40 + 0 + 0 + 42 + 37 + 534 + 5 = 666.

It is not a de Polignac number, because 8400042375345 - 2¹⁶ = 8400042309809 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 8400042375345.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 379583241 + ... + 379605369.

It is an arithmetic number, because the mean of its divisors is an integer number (303907660680).

Almost surely, 2^{8400042375345} is an apocalyptic number.

It is an amenable number.

8400042375345 is a deficient number, since it is larger than the sum of its proper divisors (6187525337295).

8400042375345 is a wasteful number, since it uses less digits than its factorization.

8400042375345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37686 (or 37683 counting only the distinct ones).

The product of its (nonzero) digits is 1612800, while the sum is 45.

The spelling of 8400042375345 in words is "eight trillion, four hundred billion, forty-two million, three hundred seventy-five thousand, three hundred forty-five".