129850203652 has 12 divisors (see below), whose sum is σ = 244717691596. Its totient is φ = 59930863200.

The previous prime is 129850203629. The next prime is 129850203671. The reversal of 129850203652 is 256302058921.

It can be written as a sum of positive squares in 2 ways, for example, as 46961490436 + 82888713216 = 216706^2 + 287904^2 .

It is a super-2 number, since 2×129850203652² (a number of 23 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 129850203599 and 129850203608.

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, 1248559599 + ... + 1248559702.

Almost surely, 2^129850203652 is an apocalyptic number.

It is an amenable number.

129850203652 is a deficient number, since it is larger than the sum of its proper divisors (114867487944).

129850203652 is a wasteful number, since it uses less digits than its factorization.

129850203652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2497119318 (or 2497119316 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 43.

The spelling of 129850203652 in words is "one hundred twenty-nine billion, eight hundred fifty million, two hundred three thousand, six hundred fifty-two".