20710837497768 has 32 divisors (see below), whose sum is σ = 56484102267360. Its totient is φ = 6276011362880.

The previous prime is 20710837497739. The next prime is 20710837497809. The reversal of 20710837497768 is 86779473801702.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39225070755 + ... + 39225071282.

It is an arithmetic number, because the mean of its divisors is an integer number (1765128195855).

Almost surely, 2^{20710837497768} is an apocalyptic number.

It is an amenable number.

20710837497768 is an abundant number, since it is smaller than the sum of its proper divisors (35773264769592).

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

20710837497768 is a wasteful number, since it uses less digits than its factorization.

20710837497768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78450142057 (or 78450142053 counting only the distinct ones).

The product of its (nonzero) digits is 199148544, while the sum is 69.

The spelling of 20710837497768 in words is "twenty trillion, seven hundred ten billion, eight hundred thirty-seven million, four hundred ninety-seven thousand, seven hundred sixty-eight".