23609781036 has 36 divisors (see below), whose sum is σ = 59691751392. Its totient is φ = 7868414304.

The previous prime is 23609781011. The next prime is 23609781043. The reversal of 23609781036 is 63018790632.

23609781036 is a `hidden beast` number, since 2 + 3 + 609 + 7 + 8 + 1 + 0 + 36 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 23609780982 and 23609781000.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 135421 + ... + 256043.

Almost surely, 2^23609781036 is an apocalyptic number.

It is an amenable number.

23609781036 is an abundant number, since it is smaller than the sum of its proper divisors (36081970356).

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

23609781036 is a wasteful number, since it uses less digits than its factorization.

23609781036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126070 (or 126065 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 45.

The spelling of 23609781036 in words is "twenty-three billion, six hundred nine million, seven hundred eighty-one thousand, thirty-six".