30850712640 has 168 divisors, whose sum is σ = 115760406528. Its totient is φ = 7478952960.

The previous prime is 30850712593. The next prime is 30850712681. The reversal of 30850712640 is 4621705803.

30850712640 is a `hidden beast` number, since 3 + 0 + 8 + 5 + 0 + 7 + 1 + 2 + 640 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 30850712595 and 30850712604.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 455232 + ... + 518591.

Almost surely, 2^30850712640 is an apocalyptic number.

30850712640 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30850712640 is an abundant number, since it is smaller than the sum of its proper divisors (84909693888).

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

30850712640 is a wasteful number, since it uses less digits than its factorization.

30850712640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 973857 (or 973844 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The spelling of 30850712640 in words is "thirty billion, eight hundred fifty million, seven hundred twelve thousand, six hundred forty".