22403999999988 has 18 divisors (see below), whose sum is σ = 56632333333394. Its totient is φ = 7467999999984.

The previous prime is 22403999999987. The next prime is 22404000000017. The reversal of 22403999999988 is 88999999930422.

22403999999988 is a `hidden beast` number, since 2 + 2 + 40 + 399 + 9 + 9 + 99 + 98 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 22241052145764 + 162947854224 = 4716042^2 + 403668^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a junction number, because it is equal to n+sod(n) for n = 22403999999898 and 22403999999907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22403999999987) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 311166666631 + ... + 311166666702.

Almost surely, 2^{22403999999988} is an apocalyptic number.

It is an amenable number.

22403999999988 is an abundant number, since it is smaller than the sum of its proper divisors (34228333333406).

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

22403999999988 is a wasteful number, since it uses less digits than its factorization.

22403999999988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 622333333343 (or 622333333338 counting only the distinct ones).

The product of its (nonzero) digits is 14693280768, while the sum is 90.

The spelling of 22403999999988 in words is "twenty-two trillion, four hundred three billion, nine hundred ninety-nine million, nine hundred ninety-nine thousand, nine hundred eighty-eight".