123749060564 has 12 divisors (see below), whose sum is σ = 220111034388. Its totient is φ = 60860193600.

The previous prime is 123749060557. The next prime is 123749060573. The reversal of 123749060564 is 465060947321.

It can be written as a sum of positive squares in 2 ways, for example, as 70618810564 + 53130250000 = 265742^2 + 230500^2 .

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 253583897 + ... + 253584384.

It is an arithmetic number, because the mean of its divisors is an integer number (18342586199).

Almost surely, 2^123749060564 is an apocalyptic number.

It is an amenable number.

123749060564 is a deficient number, since it is larger than the sum of its proper divisors (96361973824).

123749060564 is a wasteful number, since it uses less digits than its factorization.

123749060564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 507168346 (or 507168344 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 47.

The spelling of 123749060564 in words is "one hundred twenty-three billion, seven hundred forty-nine million, sixty thousand, five hundred sixty-four".