12406876957 has 2 divisors, whose sum is σ = 12406876958. Its totient is φ = 12406876956.

The previous prime is 12406876949. The next prime is 12406876973. The reversal of 12406876957 is 75967860421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9258095961 + 3148780996 = 96219^2 + 56114^2 .

It is a cyclic number.

It is not a de Polignac number, because 12406876957 - 2³ = 12406876949 is a prime.

It is a super-2 number, since 2×12406876957² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12406876898 and 12406876907.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12406876927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6203438478 + 6203438479.

It is an arithmetic number, because the mean of its divisors is an integer number (6203438479).

Almost surely, 2^12406876957 is an apocalyptic number.

It is an amenable number.

12406876957 is a deficient number, since it is larger than the sum of its proper divisors (1).

12406876957 is an equidigital number, since it uses as much as digits as its factorization.

12406876957 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5080320, while the sum is 55.

The spelling of 12406876957 in words is "twelve billion, four hundred six million, eight hundred seventy-six thousand, nine hundred fifty-seven".