139484939520 has 144 divisors (see below), whose sum is σ = 450848284992. Its totient is φ = 36747755520.

The previous prime is 139484939509. The next prime is 139484939521. The reversal of 139484939520 is 25939484931.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139484939521) 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, 99900 + ... + 537540.

It is an arithmetic number, because the mean of its divisors is an integer number (3130890868).

Almost surely, 2^139484939520 is an apocalyptic number.

139484939520 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 139484939520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (225424142496).

139484939520 is an abundant number, since it is smaller than the sum of its proper divisors (311363345472).

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

139484939520 is an equidigital number, since it uses as much as digits as its factorization.

139484939520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437748 (or 437734 counting only the distinct ones).

The product of its (nonzero) digits is 8398080, while the sum is 57.

The spelling of 139484939520 in words is "one hundred thirty-nine billion, four hundred eighty-four million, nine hundred thirty-nine thousand, five hundred twenty".