139330811528 has 8 divisors (see below), whose sum is σ = 261245271630. Its totient is φ = 69665405760.

The previous prime is 139330811491. The next prime is 139330811549. The reversal of 139330811528 is 825118033931.

It can be written as a sum of positive squares in only one way, i.e., 135366598084 + 3964213444 = 367922^2 + 62962^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8708175713 + ... + 8708175728.

Almost surely, 2^139330811528 is an apocalyptic number.

It is an amenable number.

139330811528 is a deficient number, since it is larger than the sum of its proper divisors (121914460102).

139330811528 is a wasteful number, since it uses less digits than its factorization.

139330811528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17416351447 (or 17416351443 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 44.

The spelling of 139330811528 in words is "one hundred thirty-nine billion, three hundred thirty million, eight hundred eleven thousand, five hundred twenty-eight".