22907047781 has 8 divisors (see below), whose sum is σ = 23122329984. Its totient is φ = 22691986240.

The previous prime is 22907047769. The next prime is 22907047789. The reversal of 22907047781 is 18774070922.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22907047781 is a prime.

It is a super-2 number, since 2×22907047781² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22907047789) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 157250 + ... + 265596.

It is an arithmetic number, because the mean of its divisors is an integer number (2890291248).

Almost surely, 2^22907047781 is an apocalyptic number.

It is an amenable number.

22907047781 is a deficient number, since it is larger than the sum of its proper divisors (215282203).

22907047781 is a wasteful number, since it uses less digits than its factorization.

22907047781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110331.

The product of its (nonzero) digits is 395136, while the sum is 47.

The spelling of 22907047781 in words is "twenty-two billion, nine hundred seven million, forty-seven thousand, seven hundred eighty-one".