2643514340 has 12 divisors (see below), whose sum is σ = 5551380156. Its totient is φ = 1057405728.

The previous prime is 2643514303. The next prime is 2643514373. The reversal of 2643514340 is 434153462.

2643514340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1166495716 + 1477018624 = 34154^2 + 38432^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2643514297 and 2643514306.

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, 66087839 + ... + 66087878.

It is an arithmetic number, because the mean of its divisors is an integer number (462615013).

Almost surely, 2^2643514340 is an apocalyptic number.

2643514340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2643514340 is an abundant number, since it is smaller than the sum of its proper divisors (2907865816).

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

2643514340 is a wasteful number, since it uses less digits than its factorization.

2643514340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132175726 (or 132175724 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 32.

The square root of 2643514340 is about 51415.1178156775. The cubic root of 2643514340 is about 1382.6976462169.

The spelling of 2643514340 in words is "two billion, six hundred forty-three million, five hundred fourteen thousand, three hundred forty".