12752377891 has 8 divisors (see below), whose sum is σ = 13992101424. Its totient is φ = 11526057120.

The previous prime is 12752377889. The next prime is 12752377903. The reversal of 12752377891 is 19877325721.

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 12752377891 - 2¹ = 12752377889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12752377831) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3348696 + ... + 3352501.

It is an arithmetic number, because the mean of its divisors is an integer number (1749012678).

Almost surely, 2^12752377891 is an apocalyptic number.

12752377891 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12752377891 is a deficient number, since it is larger than the sum of its proper divisors (1239723533).

12752377891 is a wasteful number, since it uses less digits than its factorization.

12752377891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6701381.

The product of its digits is 1481760, while the sum is 52.

The spelling of 12752377891 in words is "twelve billion, seven hundred fifty-two million, three hundred seventy-seven thousand, eight hundred ninety-one".