1639029129125 has 32 divisors (see below), whose sum is σ = 2049893059968. Its totient is φ = 1308415718400.

The previous prime is 1639029129119. The next prime is 1639029129137. The reversal of 1639029129125 is 5219219209361.

It is not a de Polignac number, because 1639029129125 - 2¹⁴ = 1639029112741 is a prime.

It is a super-2 number, since 2×1639029129125² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 120218309 + ... + 120231941.

It is an arithmetic number, because the mean of its divisors is an integer number (64059158124).

Almost surely, 2^{1639029129125} is an apocalyptic number.

It is an amenable number.

1639029129125 is a deficient number, since it is larger than the sum of its proper divisors (410863930843).

1639029129125 is a wasteful number, since it uses less digits than its factorization.

1639029129125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15638 (or 15628 counting only the distinct ones).

The product of its (nonzero) digits is 524880, while the sum is 50.

The spelling of 1639029129125 in words is "one trillion, six hundred thirty-nine billion, twenty-nine million, one hundred twenty-nine thousand, one hundred twenty-five".