139480981344 has 240 divisors, whose sum is σ = 417833095680. Its totient is φ = 45824123520.

The previous prime is 139480981327. The next prime is 139480981357. The reversal of 139480981344 is 443189084931.

139480981344 is a `hidden beast` number, since 1 + 39 + 480 + 98 + 1 + 3 + 44 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 44718217 + ... + 44721335.

It is an arithmetic number, because the mean of its divisors is an integer number (1740971232).

Almost surely, 2^139480981344 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 139480981344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (208916547840).

139480981344 is an abundant number, since it is smaller than the sum of its proper divisors (278352114336).

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

139480981344 is an frugal number, since it uses more digits than its factorization.

139480981344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3227 (or 3195 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 54.

The spelling of 139480981344 in words is "one hundred thirty-nine billion, four hundred eighty million, nine hundred eighty-one thousand, three hundred forty-four".