12777372385 has 8 divisors (see below), whose sum is σ = 15689424960. Its totient is φ = 9984179184.

The previous prime is 12777372383. The next prime is 12777372403. The reversal of 12777372385 is 58327377721.

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 12777372385 - 2¹ = 12777372383 is a prime.

It is a super-2 number, since 2×12777372385² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12777372383) 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, 29714605 + ... + 29715034.

It is an arithmetic number, because the mean of its divisors is an integer number (1961178120).

Almost surely, 2^12777372385 is an apocalyptic number.

It is an amenable number.

12777372385 is a deficient number, since it is larger than the sum of its proper divisors (2912052575).

12777372385 is an equidigital number, since it uses as much as digits as its factorization.

12777372385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59429687.

The product of its digits is 3457440, while the sum is 52.

The spelling of 12777372385 in words is "twelve billion, seven hundred seventy-seven million, three hundred seventy-two thousand, three hundred eighty-five".