12537179401 has 2 divisors, whose sum is σ = 12537179402. Its totient is φ = 12537179400.

The previous prime is 12537179387. The next prime is 12537179429. The reversal of 12537179401 is 10497173521.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12465945801 + 71233600 = 111651^2 + 8440^2 .

It is a cyclic number.

It is not a de Polignac number, because 12537179401 - 2¹¹ = 12537177353 is a prime.

It is not a weakly prime, because it can be changed into another prime (12537179441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6268589700 + 6268589701.

It is an arithmetic number, because the mean of its divisors is an integer number (6268589701).

Almost surely, 2^12537179401 is an apocalyptic number.

It is an amenable number.

12537179401 is a deficient number, since it is larger than the sum of its proper divisors (1).

12537179401 is an equidigital number, since it uses as much as digits as its factorization.

12537179401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 52920, while the sum is 40.

The spelling of 12537179401 in words is "twelve billion, five hundred thirty-seven million, one hundred seventy-nine thousand, four hundred one".