2646347540 has 24 divisors (see below), whose sum is σ = 5609272032. Its totient is φ = 1048645280.

The previous prime is 2646347513. The next prime is 2646347603. The reversal of 2646347540 is 457436462.

2646347540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 616166 + ... + 620445.

It is an arithmetic number, because the mean of its divisors is an integer number (233719668).

Almost surely, 2^2646347540 is an apocalyptic number.

2646347540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2646347540 is an abundant number, since it is smaller than the sum of its proper divisors (2962924492).

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

2646347540 is a wasteful number, since it uses less digits than its factorization.

2646347540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1236727 (or 1236725 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 41.

The square root of 2646347540 is about 51442.6626449293. The cubic root of 2646347540 is about 1383.1914409388.

The spelling of 2646347540 in words is "two billion, six hundred forty-six million, three hundred forty-seven thousand, five hundred forty".