23456782890 has 48 divisors (see below), whose sum is σ = 61557638688. Its totient is φ = 6196680288.

The previous prime is 23456782873. The next prime is 23456782891. The reversal of 23456782890 is 9828765432.

23456782890 is a `hidden beast` number, since 23 + 456 + 7 + 82 + 8 + 90 = 666.

It is not an unprimeable number, because it can be changed into a prime (23456782891) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1208272 + ... + 1227531.

It is an arithmetic number, because the mean of its divisors is an integer number (1282450806).

Almost surely, 2^23456782890 is an apocalyptic number.

23456782890 is an abundant number, since it is smaller than the sum of its proper divisors (38100855798).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23456782890 is a wasteful number, since it uses less digits than its factorization.

23456782890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2435923 (or 2435920 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 54.

The spelling of 23456782890 in words is "twenty-three billion, four hundred fifty-six million, seven hundred eighty-two thousand, eight hundred ninety".