23311869450 has 96 divisors (see below), whose sum is σ = 58813807104. Its totient is φ = 6109371840.

The previous prime is 23311869409. The next prime is 23311869461. The reversal of 23311869450 is 5496811332.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4690867 + ... + 4695833.

It is an arithmetic number, because the mean of its divisors is an integer number (612643824).

Almost surely, 2^23311869450 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23311869450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29406903552).

23311869450 is an abundant number, since it is smaller than the sum of its proper divisors (35501937654).

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

23311869450 is a wasteful number, since it uses less digits than its factorization.

23311869450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5516 (or 5511 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 42.

It can be divided in two parts, 2331 and 1869450, that added together give a palindrome (1871781).

The spelling of 23311869450 in words is "twenty-three billion, three hundred eleven million, eight hundred sixty-nine thousand, four hundred fifty".