1639029129126 has 8 divisors (see below), whose sum is σ = 3278058258264. Its totient is φ = 546343043040.

The previous prime is 1639029129119. The next prime is 1639029129137. The reversal of 1639029129126 is 6219219209361.

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

1639029129126 is an admirable number.

It is a super-2 number, since 2×1639029129126² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

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, 136585760755 + ... + 136585760766.

It is an arithmetic number, because the mean of its divisors is an integer number (409757282283).

Almost surely, 2^{1639029129126} is an apocalyptic number.

1639029129126 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1639029129126 is a wasteful number, since it uses less digits than its factorization.

1639029129126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273171521526.

The product of its (nonzero) digits is 629856, while the sum is 51.

The spelling of 1639029129126 in words is "one trillion, six hundred thirty-nine billion, twenty-nine million, one hundred twenty-nine thousand, one hundred twenty-six".