12540323462 has 8 divisors (see below), whose sum is σ = 19916984376. Its totient is φ = 5901328672.

The previous prime is 12540323443. The next prime is 12540323483. The reversal of 12540323462 is 26432304521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 184416488 + ... + 184416555.

It is an arithmetic number, because the mean of its divisors is an integer number (2489623047).

Almost surely, 2^12540323462 is an apocalyptic number.

12540323462 is a deficient number, since it is larger than the sum of its proper divisors (7376660914).

12540323462 is a wasteful number, since it uses less digits than its factorization.

12540323462 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368833062.

The product of its (nonzero) digits is 34560, while the sum is 32.

Adding to 12540323462 its reverse (26432304521), we get a palindrome (38972627983).

The spelling of 12540323462 in words is "twelve billion, five hundred forty million, three hundred twenty-three thousand, four hundred sixty-two".