215743045700 has 108 divisors (see below), whose sum is σ = 586489345092. Its totient is φ = 68279097600.

The previous prime is 215743045667. The next prime is 215743045741. The reversal of 215743045700 is 7540347512.

It can be written as a sum of positive squares in 6 ways, for example, as 5957061124 + 209785984576 = 77182^2 + 458024^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1629731 + ... + 1757130.

It is an arithmetic number, because the mean of its divisors is an integer number (5430456899).

Almost surely, 2^215743045700 is an apocalyptic number.

215743045700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

215743045700 is an abundant number, since it is smaller than the sum of its proper divisors (370746299392).

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

215743045700 is a wasteful number, since it uses less digits than its factorization.

215743045700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3386902 (or 3386888 counting only the distinct ones).

The product of its (nonzero) digits is 117600, while the sum is 38.

The spelling of 215743045700 in words is "two hundred fifteen billion, seven hundred forty-three million, forty-five thousand, seven hundred".