12610421615 has 16 divisors (see below), whose sum is σ = 16528306176. Its totient is φ = 9160039200.

The previous prime is 12610421611. The next prime is 12610421639. The reversal of 12610421615 is 51612401621.

It is not a de Polignac number, because 12610421615 - 2² = 12610421611 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12610421611) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94031 + ... + 184560.

It is an arithmetic number, because the mean of its divisors is an integer number (1033019136).

Almost surely, 2^12610421615 is an apocalyptic number.

12610421615 is a deficient number, since it is larger than the sum of its proper divisors (3917884561).

12610421615 is a wasteful number, since it uses less digits than its factorization.

12610421615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279430.

The product of its (nonzero) digits is 2880, while the sum is 29.

The spelling of 12610421615 in words is "twelve billion, six hundred ten million, four hundred twenty-one thousand, six hundred fifteen".