39129428398 has 4 divisors (see below), whose sum is σ = 58694142600. Its totient is φ = 19564714198.

The previous prime is 39129428369. The next prime is 39129428407. The reversal of 39129428398 is 89382492193.

39129428398 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 89382492193 = 3463 ⋅25810711.

It is a super-2 number, since 2×39129428398² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9782357098 + ... + 9782357101.

It is an arithmetic number, because the mean of its divisors is an integer number (14673535650).

Almost surely, 2^39129428398 is an apocalyptic number.

39129428398 is a deficient number, since it is larger than the sum of its proper divisors (19564714202).

39129428398 is a wasteful number, since it uses less digits than its factorization.

39129428398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19564714201.

The product of its digits is 6718464, while the sum is 58.

The spelling of 39129428398 in words is "thirty-nine billion, one hundred twenty-nine million, four hundred twenty-eight thousand, three hundred ninety-eight".