207153863540 has 48 divisors (see below), whose sum is σ = 468915697488. Its totient is φ = 76417496064.

The previous prime is 207153863533. The next prime is 207153863561. The reversal of 207153863540 is 45368351702.

207153863540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 8726116 + 207145137424 = 2954^2 + 455132^2 .

It is a junction number, because it is equal to n+sod(n) for n = 207153863491 and 207153863500.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80297 + ... + 648656.

It is an arithmetic number, because the mean of its divisors is an integer number (9769077031).

Almost surely, 2^207153863540 is an apocalyptic number.

207153863540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

207153863540 is an abundant number, since it is smaller than the sum of its proper divisors (261761833948).

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

207153863540 is a wasteful number, since it uses less digits than its factorization.

207153863540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 730068 (or 730066 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 44.

The spelling of 207153863540 in words is "two hundred seven billion, one hundred fifty-three million, eight hundred sixty-three thousand, five hundred forty".