2285778315780 has 240 divisors, whose sum is σ = 7406586485760. Its totient is φ = 589503225600.

The previous prime is 2285778315757. The next prime is 2285778315791. The reversal of 2285778315780 is 875138775822.

2285778315780 is a `hidden beast` number, since 2 + 2 + 8 + 57 + 7 + 8 + 3 + 1 + 578 + 0 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 83803545 + ... + 83830815.

It is an arithmetic number, because the mean of its divisors is an integer number (30860777024).

Almost surely, 2^{2285778315780} is an apocalyptic number.

2285778315780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2285778315780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3703293242880).

2285778315780 is an abundant number, since it is smaller than the sum of its proper divisors (5120808169980).

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

2285778315780 is a wasteful number, since it uses less digits than its factorization.

2285778315780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28992 (or 28981 counting only the distinct ones).

The product of its (nonzero) digits is 52684800, while the sum is 63.

The spelling of 2285778315780 in words is "two trillion, two hundred eighty-five billion, seven hundred seventy-eight million, three hundred fifteen thousand, seven hundred eighty".