30785378686700 has 144 divisors (see below), whose sum is σ = 75410888081760. Its totient is φ = 10805722368000.

The previous prime is 30785378686697. The next prime is 30785378686721. The reversal of 30785378686700 is 768687358703.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 118953440 + ... + 119211960.

It is an arithmetic number, because the mean of its divisors is an integer number (523686722790).

Almost surely, 2^{30785378686700} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30785378686700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37705444040880).

30785378686700 is an abundant number, since it is smaller than the sum of its proper divisors (44625509395060).

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

30785378686700 is a wasteful number, since it uses less digits than its factorization.

30785378686700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262308 (or 262301 counting only the distinct ones).

The product of its (nonzero) digits is 284497920, while the sum is 68.

The spelling of 30785378686700 in words is "thirty trillion, seven hundred eighty-five billion, three hundred seventy-eight million, six hundred eighty-six thousand, seven hundred".