139824643720 has 16 divisors (see below), whose sum is σ = 314605448460. Its totient is φ = 55929857472.

The previous prime is 139824643691. The next prime is 139824643813. The reversal of 139824643720 is 27346428931.

It can be written as a sum of positive squares in 2 ways, for example, as 126478387044 + 13346256676 = 355638^2 + 115526^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1747808007 + ... + 1747808086.

Almost surely, 2^139824643720 is an apocalyptic number.

139824643720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

139824643720 is an abundant number, since it is smaller than the sum of its proper divisors (174780804740).

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

139824643720 is a wasteful number, since it uses less digits than its factorization.

139824643720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3495616104 (or 3495616100 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 49.

The spelling of 139824643720 in words is "one hundred thirty-nine billion, eight hundred twenty-four million, six hundred forty-three thousand, seven hundred twenty".