139509272320 has 144 divisors (see below), whose sum is σ = 383734673280. Its totient is φ = 48060518400.

The previous prime is 139509272303. The next prime is 139509272321. The reversal of 139509272320 is 23272905931.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139509272321) 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, 6775 + ... + 528265.

It is an arithmetic number, because the mean of its divisors is an integer number (2664824120).

Almost surely, 2^139509272320 is an apocalyptic number.

139509272320 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 139509272320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (191867336640).

139509272320 is an abundant number, since it is smaller than the sum of its proper divisors (244225400960).

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

139509272320 is a wasteful number, since it uses less digits than its factorization.

139509272320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 521542 (or 521528 counting only the distinct ones).

The product of its (nonzero) digits is 204120, while the sum is 43.

The spelling of 139509272320 in words is "one hundred thirty-nine billion, five hundred nine million, two hundred seventy-two thousand, three hundred twenty".