11612571263 has 16 divisors (see below), whose sum is σ = 12132679680. Its totient is φ = 11102313600.

The previous prime is 11612571241. The next prime is 11612571277. The reversal of 11612571263 is 36217521611.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 11612571263 - 2⁶ = 11612571199 is a prime.

It is a super-2 number, since 2×11612571263² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11612574263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 942698 + ... + 954936.

It is an arithmetic number, because the mean of its divisors is an integer number (758292480).

Almost surely, 2^11612571263 is an apocalyptic number.

11612571263 is a deficient number, since it is larger than the sum of its proper divisors (520108417).

11612571263 is a wasteful number, since it uses less digits than its factorization.

11612571263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12638.

The product of its digits is 15120, while the sum is 35.

The spelling of 11612571263 in words is "eleven billion, six hundred twelve million, five hundred seventy-one thousand, two hundred sixty-three".