207642000820 has 24 divisors (see below), whose sum is σ = 446188859424. Its totient is φ = 81125246496.

The previous prime is 207642000809. The next prime is 207642000823. The reversal of 207642000820 is 28000246702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (207642000823) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120721234 + ... + 120722953.

It is an arithmetic number, because the mean of its divisors is an integer number (18591202476).

Almost surely, 2^207642000820 is an apocalyptic number.

207642000820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

207642000820 is an abundant number, since it is smaller than the sum of its proper divisors (238546858604).

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

207642000820 is a wasteful number, since it uses less digits than its factorization.

207642000820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241444239 (or 241444237 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 31.

The spelling of 207642000820 in words is "two hundred seven billion, six hundred forty-two million, eight hundred twenty", and thus it is an aban number.