207070005820 has 24 divisors (see below), whose sum is σ = 435384558000. Its totient is φ = 82725612672.

The previous prime is 207070005803. The next prime is 207070005829. The reversal of 207070005820 is 28500070702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (207070005829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6382770 + ... + 6415129.

It is an arithmetic number, because the mean of its divisors is an integer number (18141023250).

Almost surely, 2^207070005820 is an apocalyptic number.

207070005820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

207070005820 is an abundant number, since it is smaller than the sum of its proper divisors (228314552180).

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

207070005820 is a wasteful number, since it uses less digits than its factorization.

207070005820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12798717 (or 12798715 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 31.

The spelling of 207070005820 in words is "two hundred seven billion, seventy million, five thousand, eight hundred twenty".