11972056258 has 4 divisors (see below), whose sum is σ = 17958084390. Its totient is φ = 5986028128.

The previous prime is 11972056249. The next prime is 11972056267. The reversal of 11972056258 is 85265027911.

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

It is an interprime number because it is at equal distance from previous prime (11972056249) and next prime (11972056267).

It can be written as a sum of positive squares in only one way, i.e., 11949331969 + 22724289 = 109313^2 + 4767^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2993014063 + ... + 2993014066.

Almost surely, 2^11972056258 is an apocalyptic number.

11972056258 is a deficient number, since it is larger than the sum of its proper divisors (5986028132).

11972056258 is an equidigital number, since it uses as much as digits as its factorization.

11972056258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5986028131.

The product of its (nonzero) digits is 302400, while the sum is 46.

The spelling of 11972056258 in words is "eleven billion, nine hundred seventy-two million, fifty-six thousand, two hundred fifty-eight".