22761087720 has 128 divisors (see below), whose sum is σ = 78069657600. Its totient is φ = 5200425216.

The previous prime is 22761087719. The next prime is 22761087793. The reversal of 22761087720 is 2778016722.

It is a super-2 number, since 2×22761087720² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3137137 + ... + 3144383.

It is an arithmetic number, because the mean of its divisors is an integer number (609919200).

Almost surely, 2^22761087720 is an apocalyptic number.

22761087720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22761087720 is an abundant number, since it is smaller than the sum of its proper divisors (55308569880).

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

22761087720 is a wasteful number, since it uses less digits than its factorization.

22761087720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11007 (or 11003 counting only the distinct ones).

The product of its (nonzero) digits is 131712, while the sum is 42.

The spelling of 22761087720 in words is "twenty-two billion, seven hundred sixty-one million, eighty-seven thousand, seven hundred twenty".