123465671617 has 16 divisors (see below), whose sum is σ = 135737948160. Its totient is φ = 111780065232.

The previous prime is 123465671611. The next prime is 123465671621. The reversal of 123465671617 is 716176564321.

It is a happy number.

It is not a de Polignac number, because 123465671617 - 2⁷ = 123465671489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (123465671611) 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, 353938 + ... + 610084.

It is an arithmetic number, because the mean of its divisors is an integer number (8483621760).

Almost surely, 2^123465671617 is an apocalyptic number.

It is an amenable number.

123465671617 is a deficient number, since it is larger than the sum of its proper divisors (12272276543).

123465671617 is a wasteful number, since it uses less digits than its factorization.

123465671617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257292.

The product of its digits is 1270080, while the sum is 49.

The spelling of 123465671617 in words is "one hundred twenty-three billion, four hundred sixty-five million, six hundred seventy-one thousand, six hundred seventeen".