12777372403 has 2 divisors, whose sum is σ = 12777372404. Its totient is φ = 12777372402.

The previous prime is 12777372383. The next prime is 12777372407. The reversal of 12777372403 is 30427377721.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12777372403 - 2⁵ = 12777372371 is a prime.

It is a super-2 number, since 2×12777372403² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12777372403.

It is not a weakly prime, because it can be changed into another prime (12777372407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6388686201 + 6388686202.

It is an arithmetic number, because the mean of its divisors is an integer number (6388686202).

Almost surely, 2^12777372403 is an apocalyptic number.

12777372403 is a deficient number, since it is larger than the sum of its proper divisors (1).

12777372403 is an equidigital number, since it uses as much as digits as its factorization.

12777372403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 345744, while the sum is 43.

The spelling of 12777372403 in words is "twelve billion, seven hundred seventy-seven million, three hundred seventy-two thousand, four hundred three".