42645055266703 has 4 divisors (see below), whose sum is σ = 42832918946520. Its totient is φ = 42457191586888.

The previous prime is 42645055266701. The next prime is 42645055266761. The reversal of 42645055266703 is 30766255054624.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42645055266703 - 2¹ = 42645055266701 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 (42645055266701) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93931839568 + ... + 93931840021.

It is an arithmetic number, because the mean of its divisors is an integer number (10708229736630).

Almost surely, 2^{42645055266703} is an apocalyptic number.

42645055266703 is a deficient number, since it is larger than the sum of its proper divisors (187863679817).

42645055266703 is a wasteful number, since it uses less digits than its factorization.

42645055266703 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187863679816.

The product of its (nonzero) digits is 36288000, while the sum is 55.

The spelling of 42645055266703 in words is "forty-two trillion, six hundred forty-five billion, fifty-five million, two hundred sixty-six thousand, seven hundred three".