22743991512 has 192 divisors, whose sum is σ = 69740092800. Its totient is φ = 6862680000.

The previous prime is 22743991499. The next prime is 22743991547. The reversal of 22743991512 is 21519934722.

22743991512 is a `hidden beast` number, since 2 + 2 + 7 + 43 + 9 + 91 + 512 = 666.

It is a super-2 number, since 2×22743991512² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6558403 + ... + 6561869.

It is an arithmetic number, because the mean of its divisors is an integer number (363229650).

Almost surely, 2^22743991512 is an apocalyptic number.

22743991512 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22743991512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34870046400).

22743991512 is an abundant number, since it is smaller than the sum of its proper divisors (46996101288).

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

22743991512 is a wasteful number, since it uses less digits than its factorization.

22743991512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3755 (or 3734 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

It can be divided in two parts, 2274399 and 1512, that added together give a triangular number (2275911 = T₂₁₃₃).

The spelling of 22743991512 in words is "twenty-two billion, seven hundred forty-three million, nine hundred ninety-one thousand, five hundred twelve".