2045079806440 has 64 divisors (see below), whose sum is σ = 5050537479360. Its totient is φ = 739102993920.

The previous prime is 2045079806423. The next prime is 2045079806489. The reversal of 2045079806440 is 446089705402.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14185669 + ... + 14329108.

It is an arithmetic number, because the mean of its divisors is an integer number (78914648115).

Almost surely, 2^{2045079806440} is an apocalyptic number.

2045079806440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2045079806440 is an abundant number, since it is smaller than the sum of its proper divisors (3005457672920).

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

2045079806440 is a wasteful number, since it uses less digits than its factorization.

2045079806440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28514962 (or 28514958 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 49.

The spelling of 2045079806440 in words is "two trillion, forty-five billion, seventy-nine million, eight hundred six thousand, four hundred forty".