2800400286280 has 16 divisors (see below), whose sum is σ = 6300900644220. Its totient is φ = 1120160114496.

The previous prime is 2800400286253. The next prime is 2800400286329. The reversal of 2800400286280 is 826820040082.

It can be written as a sum of positive squares in 2 ways, for example, as 2799752176516 + 648109764 = 1673246^2 + 25458^2 .

It is a Harshad number since it is a multiple of its sum of digits (40), and also a Moran number because the ratio is a prime number: 70010007157 = 2800400286280 / (2 + 8 + 0 + 0 + 4 + 0 + 0 + 2 + 8 + 6 + 2 + 8 + 0).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35005003539 + ... + 35005003618.

Almost surely, 2^{2800400286280} is an apocalyptic number.

2800400286280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2800400286280 is an abundant number, since it is smaller than the sum of its proper divisors (3500500357940).

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

2800400286280 is a wasteful number, since it uses less digits than its factorization.

2800400286280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70010007168 (or 70010007164 counting only the distinct ones).

The product of its (nonzero) digits is 98304, while the sum is 40.

The spelling of 2800400286280 in words is "two trillion, eight hundred billion, four hundred million, two hundred eighty-six thousand, two hundred eighty".