83782625220 has 144 divisors (see below), whose sum is σ = 290523542400. Its totient is φ = 19145230848.

The previous prime is 83782625219. The next prime is 83782625237. The reversal of 83782625220 is 2252628738.

It is a happy number.

83782625220 is a `hidden beast` number, since 8 + 378 + 2 + 6 + 252 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6859639 + ... + 6871841.

It is an arithmetic number, because the mean of its divisors is an integer number (2017524600).

Almost surely, 2^83782625220 is an apocalyptic number.

It is an amenable number.

83782625220 is an abundant number, since it is smaller than the sum of its proper divisors (206740917180).

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

83782625220 is a wasteful number, since it uses less digits than its factorization.

83782625220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17674 (or 17669 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 45.

The spelling of 83782625220 in words is "eighty-three billion, seven hundred eighty-two million, six hundred twenty-five thousand, two hundred twenty".