139261427585280 has 3456 divisors, whose sum is σ = 664075349683200. Its totient is φ = 26552272158720.

The previous prime is 139261427585221. The next prime is 139261427585317. The reversal of 139261427585280 is 82585724162931.

It is a happy number.

139261427585280 is a `hidden beast` number, since 1 + 3 + 9 + 2 + 6 + 1 + 4 + 27 + 585 + 28 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 109053584002 + ... + 109053585278.

It is an arithmetic number, because the mean of its divisors is an integer number (192151432200).

It is a 1-persistent number, because it is pandigital, but 2⋅139261427585280 = 278522855170560 is not.

Almost surely, 2^{139261427585280} is an apocalyptic number.

139261427585280 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 139261427585280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (332037674841600).

139261427585280 is an abundant number, since it is smaller than the sum of its proper divisors (524813922097920).

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

139261427585280 is a wasteful number, since it uses less digits than its factorization.

139261427585280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1542 (or 1511 counting only the distinct ones).

The product of its (nonzero) digits is 58060800, while the sum is 63.

The spelling of 139261427585280 in words is "one hundred thirty-nine trillion, two hundred sixty-one billion, four hundred twenty-seven million, five hundred eighty-five thousand, two hundred eighty".