12277578781701 has 16 divisors (see below), whose sum is σ = 18460483300800. Its totient is φ = 8062887556944.

The previous prime is 12277578781681. The next prime is 12277578781763. The reversal of 12277578781701 is 10718787577221.

It is a happy number.

It is not a de Polignac number, because 12277578781701 - 2²³ = 12277570393093 is a prime.

It is a super-2 number, since 2×12277578781701² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12277578781301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3393469386 + ... + 3393473003.

It is an arithmetic number, because the mean of its divisors is an integer number (1153780206300).

Almost surely, 2^{12277578781701} is an apocalyptic number.

It is an amenable number.

12277578781701 is a deficient number, since it is larger than the sum of its proper divisors (6182904519099).

12277578781701 is an equidigital number, since it uses as much as digits as its factorization.

12277578781701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6786942465 (or 6786942459 counting only the distinct ones).

The product of its (nonzero) digits is 21512960, while the sum is 63.

The spelling of 12277578781701 in words is "twelve trillion, two hundred seventy-seven billion, five hundred seventy-eight million, seven hundred eighty-one thousand, seven hundred one".