5251207287136 has 96 divisors (see below), whose sum is σ = 10824902000640. Its totient is φ = 2504474380800.

The previous prime is 5251207287133. The next prime is 5251207287149. The reversal of 5251207287136 is 6317827021525.

It is a self number, because there is not a number n which added to its sum of digits gives 5251207287136.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5251207287133) 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, 380818930 + ... + 380832718.

It is an arithmetic number, because the mean of its divisors is an integer number (112759395840).

Almost surely, 2^{5251207287136} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5251207287136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5412451000320).

5251207287136 is an abundant number, since it is smaller than the sum of its proper divisors (5573694713504).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5251207287136 is a wasteful number, since it uses less digits than its factorization.

5251207287136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19308 (or 19300 counting only the distinct ones).

The product of its (nonzero) digits is 1411200, while the sum is 49.

The spelling of 5251207287136 in words is "five trillion, two hundred fifty-one billion, two hundred seven million, two hundred eighty-seven thousand, one hundred thirty-six".