3798987729578 has 8 divisors (see below), whose sum is σ = 5894980959780. Its totient is φ = 1833994076320.

The previous prime is 3798987729577. The next prime is 3798987729617. The reversal of 3798987729578 is 8759277898973.

It can be written as a sum of positive squares in 2 ways, for example, as 3435399231289 + 363588498289 = 1853483^2 + 602983^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 3798987729493 and 3798987729502.

It is not an unprimeable number, because it can be changed into a prime (3798987729577) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32749894163 + ... + 32749894278.

Almost surely, 2^{3798987729578} is an apocalyptic number.

3798987729578 is a deficient number, since it is larger than the sum of its proper divisors (2095993230202).

3798987729578 is a wasteful number, since it uses less digits than its factorization.

3798987729578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65499788472.

The product of its digits is 26885053440, while the sum is 89.

The spelling of 3798987729578 in words is "three trillion, seven hundred ninety-eight billion, nine hundred eighty-seven million, seven hundred twenty-nine thousand, five hundred seventy-eight".