12536367401 has 4 divisors (see below), whose sum is σ = 12537010512. Its totient is φ = 12535724292.

The previous prime is 12536367383. The next prime is 12536367449. The reversal of 12536367401 is 10476363521.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12536367401 - 2¹⁰ = 12536366377 is a prime.

It is a super-2 number, since 2×12536367401² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12536367461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 291371 + ... + 331616.

It is an arithmetic number, because the mean of its divisors is an integer number (3134252628).

Almost surely, 2^12536367401 is an apocalyptic number.

It is an amenable number.

12536367401 is a deficient number, since it is larger than the sum of its proper divisors (643111).

12536367401 is an equidigital number, since it uses as much as digits as its factorization.

12536367401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 643110.

The product of its (nonzero) digits is 90720, while the sum is 38.

The spelling of 12536367401 in words is "twelve billion, five hundred thirty-six million, three hundred sixty-seven thousand, four hundred one".