30708828907020 has 144 divisors (see below), whose sum is σ = 101883631030272. Its totient is φ = 7425126894720.

The previous prime is 30708828906983. The next prime is 30708828907153. The reversal of 30708828907020 is 2070982880703.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 19489062 + ... + 21005741.

It is an arithmetic number, because the mean of its divisors is an integer number (707525215488).

Almost surely, 2^{30708828907020} is an apocalyptic number.

30708828907020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30708828907020 is an abundant number, since it is smaller than the sum of its proper divisors (71174802123252).

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

30708828907020 is a wasteful number, since it uses less digits than its factorization.

30708828907020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40495212 (or 40495207 counting only the distinct ones).

The product of its (nonzero) digits is 2709504, while the sum is 54.

The spelling of 30708828907020 in words is "thirty trillion, seven hundred eight billion, eight hundred twenty-eight million, nine hundred seven thousand, twenty".