20240077454623 has 4 divisors (see below), whose sum is σ = 21797006489608. Its totient is φ = 18683148419640.

The previous prime is 20240077454603. The next prime is 20240077454651. The reversal of 20240077454623 is 32645477004202.

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 20240077454623 - 2²¹ = 20240075357471 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 (20240077454603) 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, 778464517473 + ... + 778464517498.

It is an arithmetic number, because the mean of its divisors is an integer number (5449251622402).

Almost surely, 2^{20240077454623} is an apocalyptic number.

20240077454623 is a deficient number, since it is larger than the sum of its proper divisors (1556929034985).

20240077454623 is a wasteful number, since it uses less digits than its factorization.

20240077454623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1556929034984.

The product of its (nonzero) digits is 2257920, while the sum is 46.

The spelling of 20240077454623 in words is "twenty trillion, two hundred forty billion, seventy-seven million, four hundred fifty-four thousand, six hundred twenty-three".