23294776890 has 288 divisors, whose sum is σ = 72804992832. Its totient is φ = 4716902400.

The previous prime is 23294776873. The next prime is 23294776903. The reversal of 23294776890 is 9867749232.

It is a self number, because there is not a number n which added to its sum of digits gives 23294776890.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 27181342 + ... + 27182198.

It is an arithmetic number, because the mean of its divisors is an integer number (252795114).

Almost surely, 2^23294776890 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23294776890, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36402496416).

23294776890 is an abundant number, since it is smaller than the sum of its proper divisors (49510215942).

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

23294776890 is a wasteful number, since it uses less digits than its factorization.

23294776890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 974 (or 926 counting only the distinct ones).

The product of its (nonzero) digits is 9144576, while the sum is 57.

The spelling of 23294776890 in words is "twenty-three billion, two hundred ninety-four million, seven hundred seventy-six thousand, eight hundred ninety".