30828934351878 has 64 divisors (see below), whose sum is σ = 66551359929600. Its totient is φ = 9464337717120.

The previous prime is 30828934351871. The next prime is 30828934351883. The reversal of 30828934351878 is 87815343982803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30828934351871) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 64520613 + ... + 64996671.

It is an arithmetic number, because the mean of its divisors is an integer number (1039864998900).

Almost surely, 2^{30828934351878} is an apocalyptic number.

30828934351878 is an abundant number, since it is smaller than the sum of its proper divisors (35722425577722).

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

30828934351878 is a wasteful number, since it uses less digits than its factorization.

30828934351878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 477957.

The product of its (nonzero) digits is 278691840, while the sum is 69.

The spelling of 30828934351878 in words is "thirty trillion, eight hundred twenty-eight billion, nine hundred thirty-four million, three hundred fifty-one thousand, eight hundred seventy-eight".