2278405800000 has 1344 divisors, whose sum is σ = 9237706248960. Its totient is φ = 550598400000.

The previous prime is 2278405799981. The next prime is 2278405800031. The reversal of 2278405800000 is 85048722.

It is a happy number.

2278405800000 is a `hidden beast` number, since 2 + 2 + 78 + 4 + 0 + 580 + 0 + 0 + 0 + 0 = 666.

It is a super-2 number, since 2×2278405800000² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 7187399842 + ... + 7187400158.

It is an arithmetic number, because the mean of its divisors is an integer number (6873293340).

Almost surely, 2^{2278405800000} is an apocalyptic number.

2278405800000 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 2278405800000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4618853124480).

2278405800000 is an abundant number, since it is smaller than the sum of its proper divisors (6959300448960).

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

2278405800000 is an frugal number, since it uses more digits than its factorization.

2278405800000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 396 (or 338 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 36.

The spelling of 2278405800000 in words is "two trillion, two hundred seventy-eight billion, four hundred five million, eight hundred thousand".