745007859122 has 6 divisors (see below), whose sum is σ = 1117513619679. Its totient is φ = 372503319230.

The previous prime is 745007859119. The next prime is 745007859143. The reversal of 745007859122 is 221958700547.

It can be written as a sum of positive squares in only one way, i.e., 372503929561 + 372503929561 = 610331^2 + 610331^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=610331.

It is a super-2 number, since 2×745007859122² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 915497 + ... + 1525827.

Almost surely, 2^745007859122 is an apocalyptic number.

745007859122 is a deficient number, since it is larger than the sum of its proper divisors (372505760557).

745007859122 is an frugal number, since it uses more digits than its factorization.

745007859122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1220664 (or 610333 counting only the distinct ones).

The product of its (nonzero) digits is 1411200, while the sum is 50.

Multiplying 745007859122 by its sum of digits (50), we get a square (37250392956100 = 6103310²).

The spelling of 745007859122 in words is "seven hundred forty-five billion, seven million, eight hundred fifty-nine thousand, one hundred twenty-two".