745912859138 has 16 divisors (see below), whose sum is σ = 1137541010424. Its totient is φ = 366736066560.

The previous prime is 745912859113. The next prime is 745912859173. The reversal of 745912859138 is 831958219547.

It can be written as a sum of positive squares in 4 ways, for example, as 175575246289 + 570337612849 = 419017^2 + 755207^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 462545 + ... + 1306052.

Almost surely, 2^745912859138 is an apocalyptic number.

745912859138 is a deficient number, since it is larger than the sum of its proper divisors (391628151286).

745912859138 is a wasteful number, since it uses less digits than its factorization.

745912859138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1772117.

The product of its digits is 21772800, while the sum is 62.

The spelling of 745912859138 in words is "seven hundred forty-five billion, nine hundred twelve million, eight hundred fifty-nine thousand, one hundred thirty-eight".