42045654023 has 4 divisors (see below), whose sum is σ = 42049710768. Its totient is φ = 42041597280.

The previous prime is 42045653957. The next prime is 42045654029. The reversal of 42045654023 is 32045654024.

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 42045654023 - 2¹⁴ = 42045637639 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 (42045654029) 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, 2012786 + ... + 2033567.

It is an arithmetic number, because the mean of its divisors is an integer number (10512427692).

Almost surely, 2^42045654023 is an apocalyptic number.

42045654023 is a deficient number, since it is larger than the sum of its proper divisors (4056745).

42045654023 is a wasteful number, since it uses less digits than its factorization.

42045654023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4056744.

The product of its (nonzero) digits is 115200, while the sum is 35.

Subtracting from 42045654023 its reverse (32045654024), we obtain a palindrome (9999999999).

The spelling of 42045654023 in words is "forty-two billion, forty-five million, six hundred fifty-four thousand, twenty-three".