23012519986 has 16 divisors (see below), whose sum is σ = 35127548568. Its totient is φ = 11303798400.

The previous prime is 23012519977. The next prime is 23012519987. The reversal of 23012519986 is 68991521032.

It can be written as a sum of positive squares in 4 ways, for example, as 14648502961 + 8364017025 = 121031^2 + 91455^2 .

It is a super-2 number, since 2×23012519986² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23012519987) 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 in 7 ways as a sum of consecutive naturals, for example, 14715 + ... + 215038.

Almost surely, 2^23012519986 is an apocalyptic number.

23012519986 is a deficient number, since it is larger than the sum of its proper divisors (12115028582).

23012519986 is a wasteful number, since it uses less digits than its factorization.

23012519986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230637.

The product of its (nonzero) digits is 233280, while the sum is 46.

The spelling of 23012519986 in words is "twenty-three billion, twelve million, five hundred nineteen thousand, nine hundred eighty-six".