1258980117938 has 16 divisors (see below), whose sum is σ = 1944395372184. Its totient is φ = 610934037120.

The previous prime is 1258980117937. The next prime is 1258980118021. The reversal of 1258980117938 is 8397110898521.

It can be written as a sum of positive squares in 4 ways, for example, as 1228743429169 + 30236688769 = 1108487^2 + 173887^2 .

It is a Smith number, since the sum of its digits (62) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1258980117937) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21397883 + ... + 21456638.

Almost surely, 2^{1258980117938} is an apocalyptic number.

1258980117938 is a deficient number, since it is larger than the sum of its proper divisors (685415254246).

1258980117938 is a wasteful number, since it uses less digits than its factorization.

1258980117938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42854957.

The product of its (nonzero) digits is 8709120, while the sum is 62.

The spelling of 1258980117938 in words is "one trillion, two hundred fifty-eight billion, nine hundred eighty million, one hundred seventeen thousand, nine hundred thirty-eight".