43648263080138 has 16 divisors (see below), whose sum is σ = 65533624709256. Its totient is φ = 21803724779520.

The previous prime is 43648263080129. The next prime is 43648263080153. The reversal of 43648263080138 is 83108036284634.

It can be written as a sum of positive squares in 4 ways, for example, as 42026656943209 + 1621606136929 = 6482797^2 + 1273423^2 .

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, 26099270 + ... + 27721262.

Almost surely, 2^{43648263080138} is an apocalyptic number.

43648263080138 is a deficient number, since it is larger than the sum of its proper divisors (21885361629118).

43648263080138 is a wasteful number, since it uses less digits than its factorization.

43648263080138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1634569.

The product of its (nonzero) digits is 15925248, while the sum is 56.

The spelling of 43648263080138 in words is "forty-three trillion, six hundred forty-eight billion, two hundred sixty-three million, eighty thousand, one hundred thirty-eight".