12540467017 has 16 divisors (see below), whose sum is σ = 13908948480. Its totient is φ = 11231428032.

The previous prime is 12540466979. The next prime is 12540467029. The reversal of 12540467017 is 71076404521.

It is a cyclic number.

It is not a de Polignac number, because 12540467017 - 2⁷ = 12540466889 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12540467057) 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, 136368 + ... + 208990.

It is an arithmetic number, because the mean of its divisors is an integer number (869309280).

Almost surely, 2^12540467017 is an apocalyptic number.

It is an amenable number.

12540467017 is a deficient number, since it is larger than the sum of its proper divisors (1368481463).

12540467017 is a wasteful number, since it uses less digits than its factorization.

12540467017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73032.

The product of its (nonzero) digits is 47040, while the sum is 37.

The spelling of 12540467017 in words is "twelve billion, five hundred forty million, four hundred sixty-seven thousand, seventeen".