705297026138 has 4 divisors (see below), whose sum is σ = 1057945539210. Its totient is φ = 352648513068.

The previous prime is 705297026123. The next prime is 705297026141. The reversal of 705297026138 is 831620792507.

705297026138 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 620309034409 + 84987991729 = 787597^2 + 291527^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 176324256533 + ... + 176324256536.

Almost surely, 2^705297026138 is an apocalyptic number.

705297026138 is a deficient number, since it is larger than the sum of its proper divisors (352648513072).

705297026138 is a wasteful number, since it uses less digits than its factorization.

705297026138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352648513071.

The product of its (nonzero) digits is 1270080, while the sum is 50.

The spelling of 705297026138 in words is "seven hundred five billion, two hundred ninety-seven million, twenty-six thousand, one hundred thirty-eight".