12345671567 has 16 divisors (see below), whose sum is σ = 13102801920. Its totient is φ = 11608588992.

The previous prime is 12345671557. The next prime is 12345671587. The reversal of 12345671567 is 76517654321.

It is a cyclic number.

It is not a de Polignac number, because 12345671567 - 2⁴ = 12345671551 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12345671557) 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, 305534 + ... + 343572.

It is an arithmetic number, because the mean of its divisors is an integer number (818925120).

Almost surely, 2^12345671567 is an apocalyptic number.

12345671567 is a deficient number, since it is larger than the sum of its proper divisors (757130353).

12345671567 is a wasteful number, since it uses less digits than its factorization.

12345671567 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38302.

The product of its digits is 1058400, while the sum is 47.

The spelling of 12345671567 in words is "twelve billion, three hundred forty-five million, six hundred seventy-one thousand, five hundred sixty-seven".