12046181377 has 4 divisors (see below), whose sum is σ = 12103272496. Its totient is φ = 11989090260.

The previous prime is 12046181333. The next prime is 12046181387. The reversal of 12046181377 is 77318164021.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12046181377 is a prime.

It is a super-2 number, since 2×12046181377² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12046181387) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28545243 + ... + 28545664.

It is an arithmetic number, because the mean of its divisors is an integer number (3025818124).

Almost surely, 2^12046181377 is an apocalyptic number.

It is an amenable number.

12046181377 is a deficient number, since it is larger than the sum of its proper divisors (57091119).

12046181377 is an equidigital number, since it uses as much as digits as its factorization.

12046181377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57091118.

The product of its (nonzero) digits is 56448, while the sum is 40.

The spelling of 12046181377 in words is "twelve billion, forty-six million, one hundred eighty-one thousand, three hundred seventy-seven".