868049136 has 50 divisors (see below), whose sum is σ = 2512389792. Its totient is φ = 289349280.

The previous prime is 868049081. The next prime is 868049137. The reversal of 868049136 is 631940868.

868049136 is a `hidden beast` number, since 86 + 80 + 491 + 3 + 6 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 868049091 and 868049100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (868049137) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 333600 + ... + 336191.

Almost surely, 2^868049136 is an apocalyptic number.

It is an amenable number.

868049136 is an abundant number, since it is smaller than the sum of its proper divisors (1644340656).

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

868049136 is a wasteful number, since it uses less digits than its factorization.

868049136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 669811 (or 669796 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The square root of 868049136 is about 29462.6736057677. The cubic root of 868049136 is about 953.9261839172.

The spelling of 868049136 in words is "eight hundred sixty-eight million, forty-nine thousand, one hundred thirty-six".