139007857280 has 128 divisors (see below), whose sum is σ = 339693451920. Its totient is φ = 54375579648.

The previous prime is 139007857249. The next prime is 139007857283. The reversal of 139007857280 is 82758700931.

It can be written as a sum of positive squares in 8 ways, for example, as 59181265984 + 79826591296 = 243272^2 + 282536^2 .

It is a tau number, because it is divible by the number of its divisors (128).

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (139007857283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10610414 + ... + 10623506.

Almost surely, 2^139007857280 is an apocalyptic number.

139007857280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 139007857280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (169846725960).

139007857280 is an abundant number, since it is smaller than the sum of its proper divisors (200685594640).

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

139007857280 is a wasteful number, since it uses less digits than its factorization.

139007857280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13478 (or 13466 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 50.

The spelling of 139007857280 in words is "one hundred thirty-nine billion, seven million, eight hundred fifty-seven thousand, two hundred eighty".