68511830850 has 72 divisors (see below), whose sum is σ = 184117739520. Its totient is φ = 18264929760.

The previous prime is 68511830837. The next prime is 68511830869. The reversal of 68511830850 is 5803811586.

68511830850 is a `hidden beast` number, since 6 + 8 + 511 + 83 + 0 + 8 + 50 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 68511830796 and 68511830805.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1853247 + ... + 1889853.

Almost surely, 2^68511830850 is an apocalyptic number.

68511830850 is an abundant number, since it is smaller than the sum of its proper divisors (115605908670).

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

68511830850 is a wasteful number, since it uses less digits than its factorization.

68511830850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40784 (or 40776 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 45.

The spelling of 68511830850 in words is "sixty-eight billion, five hundred eleven million, eight hundred thirty thousand, eight hundred fifty".