12457780122469 has 16 divisors (see below), whose sum is σ = 13650055801920. Its totient is φ = 11275465743360.

The previous prime is 12457780122457. The next prime is 12457780122523. The reversal of 12457780122469 is 96422108775421.

12457780122469 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 12457780122469 - 2⁷ = 12457780122341 is a prime.

It is a super-2 number, since 2×12457780122469² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12457780122439) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 133367109 + ... + 133460485.

It is an arithmetic number, because the mean of its divisors is an integer number (853128487620).

Almost surely, 2^{12457780122469} is an apocalyptic number.

It is an amenable number.

12457780122469 is a deficient number, since it is larger than the sum of its proper divisors (1192275679451).

12457780122469 is a wasteful number, since it uses less digits than its factorization.

12457780122469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146580.

The product of its (nonzero) digits is 13547520, while the sum is 58.

The spelling of 12457780122469 in words is "twelve trillion, four hundred fifty-seven billion, seven hundred eighty million, one hundred twenty-two thousand, four hundred sixty-nine".