23081729986 has 96 divisors (see below), whose sum is σ = 43902293760. Its totient is φ = 9043985664.

The previous prime is 23081729977. The next prime is 23081729999. The reversal of 23081729986 is 68992718032.

It is a super-4 number, since 4×23081729986⁴ (a number of 43 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6386716 + ... + 6390328.

It is an arithmetic number, because the mean of its divisors is an integer number (457315560).

Almost surely, 2^23081729986 is an apocalyptic number.

23081729986 is a deficient number, since it is larger than the sum of its proper divisors (20820563774).

23081729986 is a wasteful number, since it uses less digits than its factorization.

23081729986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3768 (or 3761 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 55.

The spelling of 23081729986 in words is "twenty-three billion, eighty-one million, seven hundred twenty-nine thousand, nine hundred eighty-six".