23642123445 has 12 divisors (see below), whose sum is σ = 40979680716. Its totient is φ = 12609132480.

The previous prime is 23642123443. The next prime is 23642123471. The reversal of 23642123445 is 54432124632.

23642123445 is a `hidden beast` number, since 2 + 3 + 642 + 1 + 2 + 3 + 4 + 4 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 10767590289 + 12874533156 = 103767^2 + 113466^2 .

It is not a de Polignac number, because 23642123445 - 2¹ = 23642123443 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23642123443) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 262690216 + ... + 262690305.

It is an arithmetic number, because the mean of its divisors is an integer number (3414973393).

Almost surely, 2^23642123445 is an apocalyptic number.

It is an amenable number.

23642123445 is a deficient number, since it is larger than the sum of its proper divisors (17337557271).

23642123445 is a wasteful number, since it uses less digits than its factorization.

23642123445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525380532 (or 525380529 counting only the distinct ones).

The product of its digits is 138240, while the sum is 36.

The spelling of 23642123445 in words is "twenty-three billion, six hundred forty-two million, one hundred twenty-three thousand, four hundred forty-five".