23378440698 has 128 divisors (see below), whose sum is σ = 55588135680. Its totient is φ = 7257600000.

The previous prime is 23378440697. The next prime is 23378440703. The reversal of 23378440698 is 89604487332.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (23378440697) 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, 55530528 + ... + 55530948.

It is an arithmetic number, because the mean of its divisors is an integer number (434282310).

Almost surely, 2^23378440698 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23378440698, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27794067840).

23378440698 is an abundant number, since it is smaller than the sum of its proper divisors (32209694982).

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

23378440698 is a wasteful number, since it uses less digits than its factorization.

23378440698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 941 (or 935 counting only the distinct ones).

The product of its (nonzero) digits is 6967296, while the sum is 54.

The spelling of 23378440698 in words is "twenty-three billion, three hundred seventy-eight million, four hundred forty thousand, six hundred ninety-eight".