12538285287501 has 16 divisors (see below), whose sum is σ = 17447113322496. Its totient is φ = 7994262992496.

The previous prime is 12538285287497. The next prime is 12538285287569. The reversal of 12538285287501 is 10578258283521.

It is not a de Polignac number, because 12538285287501 - 2² = 12538285287497 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12538285287701) 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, 12765145 + ... + 13712238.

It is an arithmetic number, because the mean of its divisors is an integer number (1090444582656).

Almost surely, 2^{12538285287501} is an apocalyptic number.

It is an amenable number.

12538285287501 is a deficient number, since it is larger than the sum of its proper divisors (4908828034995).

12538285287501 is a wasteful number, since it uses less digits than its factorization.

12538285287501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26484272.

The product of its (nonzero) digits is 10752000, while the sum is 57.

The spelling of 12538285287501 in words is "twelve trillion, five hundred thirty-eight billion, two hundred eighty-five million, two hundred eighty-seven thousand, five hundred one".