23149397854 has 8 divisors (see below), whose sum is σ = 37880832888. Its totient is φ = 10522453560.

The previous prime is 23149397851. The next prime is 23149397861. The reversal of 23149397854 is 45879394132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 23149397795 and 23149397804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23149397851) 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, 526122657 + ... + 526122700.

It is an arithmetic number, because the mean of its divisors is an integer number (4735104111).

Almost surely, 2^23149397854 is an apocalyptic number.

23149397854 is a deficient number, since it is larger than the sum of its proper divisors (14731435034).

23149397854 is a wasteful number, since it uses less digits than its factorization.

23149397854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1052245370.

The product of its digits is 6531840, while the sum is 55.

The spelling of 23149397854 in words is "twenty-three billion, one hundred forty-nine million, three hundred ninety-seven thousand, eight hundred fifty-four".