207902812845 has 64 divisors (see below), whose sum is σ = 409553109504. Its totient is φ = 87699456000.

The previous prime is 207902812823. The next prime is 207902812879. The reversal of 207902812845 is 548218209702.

It is not a de Polignac number, because 207902812845 - 2³⁶ = 139183336109 is a prime.

It is a super-3 number, since 3×207902812845³ (a number of 35 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 207902812794 and 207902812803.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4070989 + ... + 4121741.

It is an arithmetic number, because the mean of its divisors is an integer number (6399267336).

Almost surely, 2^207902812845 is an apocalyptic number.

It is an amenable number.

207902812845 is a deficient number, since it is larger than the sum of its proper divisors (201650296659).

207902812845 is a wasteful number, since it uses less digits than its factorization.

207902812845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53782.

The product of its (nonzero) digits is 645120, while the sum is 48.

The spelling of 207902812845 in words is "two hundred seven billion, nine hundred two million, eight hundred twelve thousand, eight hundred forty-five".