22987329646 has 4 divisors (see below), whose sum is σ = 34480994472. Its totient is φ = 11493664822.

The previous prime is 22987329613. The next prime is 22987329647. The reversal of 22987329646 is 64692378922.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22987329647) by changing a digit.

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 as a sum of consecutive naturals, namely, 5746832410 + ... + 5746832413.

It is an arithmetic number, because the mean of its divisors is an integer number (8620248618).

Almost surely, 2^22987329646 is an apocalyptic number.

22987329646 is a deficient number, since it is larger than the sum of its proper divisors (11493664826).

22987329646 is a wasteful number, since it uses less digits than its factorization.

22987329646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11493664825.

The product of its digits is 15676416, while the sum is 58.

The spelling of 22987329646 in words is "twenty-two billion, nine hundred eighty-seven million, three hundred twenty-nine thousand, six hundred forty-six".