12545662877 has 8 divisors (see below), whose sum is σ = 13714755840. Its totient is φ = 11381332960.

The previous prime is 12545662837. The next prime is 12545662879. The reversal of 12545662877 is 77826654521.

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

It is a cyclic number.

It is not a de Polignac number, because 12545662877 - 2²⁰ = 12544614301 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 (12545662879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1185248 + ... + 1195785.

It is an arithmetic number, because the mean of its divisors is an integer number (1714344480).

Almost surely, 2^12545662877 is an apocalyptic number.

It is an amenable number.

12545662877 is a deficient number, since it is larger than the sum of its proper divisors (1169092963).

12545662877 is a wasteful number, since it uses less digits than its factorization.

12545662877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2381523.

The product of its digits is 5644800, while the sum is 53.

The spelling of 12545662877 in words is "twelve billion, five hundred forty-five million, six hundred sixty-two thousand, eight hundred seventy-seven".