11510012475 has 144 divisors (see below), whose sum is σ = 23918469120. Its totient is φ = 5244307200.

The previous prime is 11510012471. The next prime is 11510012483. The reversal of 11510012475 is 57421001511.

It is not a de Polignac number, because 11510012475 - 2² = 11510012471 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11510012471) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 2082766 + ... + 2088284.

It is an arithmetic number, because the mean of its divisors is an integer number (166100480).

Almost surely, 2^11510012475 is an apocalyptic number.

11510012475 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11510012475 is an abundant number, since it is smaller than the sum of its proper divisors (12408456645).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11510012475 is a wasteful number, since it uses less digits than its factorization.

11510012475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5602 (or 5594 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 27.

Adding to 11510012475 its reverse (57421001511), we get a palindrome (68931013986).

It can be divided in two parts, 1151001 and 2475, that added together give a square (1153476 = 1074²).

The spelling of 11510012475 in words is "eleven billion, five hundred ten million, twelve thousand, four hundred seventy-five".