285700255380 has 96 divisors (see below), whose sum is σ = 895630538880. Its totient is φ = 75605137920.

The previous prime is 285700255369. The next prime is 285700255387. The reversal of 285700255380 is 83552007582.

285700255380 is a `hidden beast` number, since 2 + 8 + 570 + 0 + 25 + 53 + 8 + 0 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285700255387) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1948629 + ... + 2090108.

It is an arithmetic number, because the mean of its divisors is an integer number (9329484780).

Almost surely, 2^285700255380 is an apocalyptic number.

285700255380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

285700255380 is an abundant number, since it is smaller than the sum of its proper divisors (609930283500).

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

285700255380 is a wasteful number, since it uses less digits than its factorization.

285700255380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4038886 (or 4038878 counting only the distinct ones).

The product of its (nonzero) digits is 672000, while the sum is 45.

The spelling of 285700255380 in words is "two hundred eighty-five billion, seven hundred million, two hundred fifty-five thousand, three hundred eighty".