12540375375 has 32 divisors (see below), whose sum is σ = 22764208896. Its totient is φ = 6080180000.

The previous prime is 12540375343. The next prime is 12540375413. The reversal of 12540375375 is 57357304521.

It is not a de Polignac number, because 12540375375 - 2⁵ = 12540375343 is a prime.

It is a super-2 number, since 2×12540375375² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1515921 + ... + 1524170.

It is an arithmetic number, because the mean of its divisors is an integer number (711381528).

Almost surely, 2^12540375375 is an apocalyptic number.

12540375375 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12540375375 is a deficient number, since it is larger than the sum of its proper divisors (10223833521).

12540375375 is a wasteful number, since it uses less digits than its factorization.

12540375375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3040120 (or 3040110 counting only the distinct ones).

The product of its (nonzero) digits is 441000, while the sum is 42.

Adding to 12540375375 its reverse (57357304521), we get a palindrome (69897679896).

The spelling of 12540375375 in words is "twelve billion, five hundred forty million, three hundred seventy-five thousand, three hundred seventy-five".