2278631425840 has 240 divisors, whose sum is σ = 6887001016224. Its totient is φ = 692899737600.

The previous prime is 2278631425823. The next prime is 2278631425867. The reversal of 2278631425840 is 485241368722.

It is a super-2 number, since 2×2278631425840² (a number of 26 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1123482 + ... + 2412358.

Almost surely, 2^{2278631425840} is an apocalyptic number.

2278631425840 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 2278631425840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3443500508112).

2278631425840 is an abundant number, since it is smaller than the sum of its proper divisors (4608369590384).

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

2278631425840 is a wasteful number, since it uses less digits than its factorization.

2278631425840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1288956 (or 1288943 counting only the distinct ones).

The product of its (nonzero) digits is 5160960, while the sum is 52.

The spelling of 2278631425840 in words is "two trillion, two hundred seventy-eight billion, six hundred thirty-one million, four hundred twenty-five thousand, eight hundred forty".