2780114640 has 80 divisors (see below), whose sum is σ = 8627424000. Its totient is φ = 740583936.

The previous prime is 2780114591. The next prime is 2780114657. The reversal of 2780114640 is 464110872.

2780114640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 243786 + ... + 254934.

It is an arithmetic number, because the mean of its divisors is an integer number (107842800).

Almost surely, 2^2780114640 is an apocalyptic number.

2780114640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2780114640 is an abundant number, since it is smaller than the sum of its proper divisors (5847309360).

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

2780114640 is a wasteful number, since it uses less digits than its factorization.

2780114640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12204 (or 12198 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 33.

The square root of 2780114640 is about 52726.7924304144. The cubic root of 2780114640 is about 1406.1151955322.

The spelling of 2780114640 in words is "two billion, seven hundred eighty million, one hundred fourteen thousand, six hundred forty".