154642426321023 has 64 divisors (see below), whose sum is σ = 235703485440000. Its totient is φ = 100156668003072.

The previous prime is 154642426321021. The next prime is 154642426321039. The reversal of 154642426321023 is 320123624246451.

154642426321023 is a `hidden beast` number, since 1 + 5 + 4 + 6 + 4 + 2 + 4 + 2 + 632 + 1 + 0 + 2 + 3 = 666.

It is not a de Polignac number, because 154642426321023 - 2¹ = 154642426321021 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 154642426321023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154642426321021) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 280888443 + ... + 281438451.

It is an arithmetic number, because the mean of its divisors is an integer number (3682866960000).

Almost surely, 2^{154642426321023} is an apocalyptic number.

154642426321023 is a deficient number, since it is larger than the sum of its proper divisors (81061059118977).

154642426321023 is a wasteful number, since it uses less digits than its factorization.

154642426321023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551701 (or 551695 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 45.

The spelling of 154642426321023 in words is "one hundred fifty-four trillion, six hundred forty-two billion, four hundred twenty-six million, three hundred twenty-one thousand, twenty-three".