213601725620 has 24 divisors (see below), whose sum is σ = 448572489288. Its totient is φ = 85439001600.

The previous prime is 213601725593. The next prime is 213601725677. The reversal of 213601725620 is 26527106312.

It can be written as a sum of positive squares in 4 ways, for example, as 25847635984 + 187754089636 = 160772^2 + 433306^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1618940 + ... + 1745900.

It is an arithmetic number, because the mean of its divisors is an integer number (18690520387).

Almost surely, 2^213601725620 is an apocalyptic number.

213601725620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213601725620 is an abundant number, since it is smaller than the sum of its proper divisors (234970763668).

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

213601725620 is a wasteful number, since it uses less digits than its factorization.

213601725620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211091 (or 211089 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 35.

The spelling of 213601725620 in words is "two hundred thirteen billion, six hundred one million, seven hundred twenty-five thousand, six hundred twenty".