20851079347000 has 64 divisors (see below), whose sum is σ = 55761743643840. Its totient is φ = 7148941488000.

The previous prime is 20851079346997. The next prime is 20851079347027. The reversal of 20851079347000 is 74397015802.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1489355811 + ... + 1489369810.

It is an arithmetic number, because the mean of its divisors is an integer number (871277244435).

Almost surely, 2^{20851079347000} is an apocalyptic number.

20851079347000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20851079347000 is an abundant number, since it is smaller than the sum of its proper divisors (34910664296840).

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

20851079347000 is a wasteful number, since it uses less digits than its factorization.

20851079347000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2978725649 (or 2978725635 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 46.

The spelling of 20851079347000 in words is "twenty trillion, eight hundred fifty-one billion, seventy-nine million, three hundred forty-seven thousand".