129927534827776 has 567 divisors, whose sum is σ = 317383013646027. Its totient is φ = 53082712488960.

The previous prime is 129927534827749. The next prime is 129927534827789. The reversal of 129927534827776 is 677728435729921.

The square root of 129927534827776 is 11398576.

It is a perfect power (a square), and thus also a powerful number.

It is a super-2 number, since 2×129927534827776² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 129927534827696 and 129927534827705.

It is an unprimeable number.

It is a polite number, since it can be written in 62 ways as a sum of consecutive naturals, for example, 1939216937695 + ... + 1939216937761.

Almost surely, 2^{129927534827776} is an apocalyptic number.

129927534827776 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

129927534827776 is the 11398576-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 129927534827776

129927534827776 is an abundant number, since it is smaller than the sum of its proper divisors (187455478818251).

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

129927534827776 is an frugal number, since it uses more digits than its factorization.

129927534827776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254 (or 107 counting only the distinct ones).

The product of its digits is 4480842240, while the sum is 79.

The spelling of 129927534827776 in words is "one hundred twenty-nine trillion, nine hundred twenty-seven billion, five hundred thirty-four million, eight hundred twenty-seven thousand, seven hundred seventy-six".