13139684250 has 384 divisors, whose sum is σ = 42183438336. Its totient is φ = 2646288000.

The previous prime is 13139684249. The next prime is 13139684291. The reversal of 13139684250 is 5248693131.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 127569699 + ... + 127569801.

It is an arithmetic number, because the mean of its divisors is an integer number (109852704).

Almost surely, 2^13139684250 is an apocalyptic number.

13139684250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 13139684250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21091719168).

13139684250 is an abundant number, since it is smaller than the sum of its proper divisors (29043754086).

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

13139684250 is a wasteful number, since it uses less digits than its factorization.

13139684250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235 (or 178 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 42.

The spelling of 13139684250 in words is "thirteen billion, one hundred thirty-nine million, six hundred eighty-four thousand, two hundred fifty".