129452770852 has 6 divisors (see below), whose sum is σ = 226542348998. Its totient is φ = 64726385424.

The previous prime is 129452770847. The next prime is 129452770897. The reversal of 129452770852 is 258077254921.

It can be written as a sum of positive squares in only one way, i.e., 80556062976 + 48896707876 = 283824^2 + 221126^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 129452770852.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16181596353 + ... + 16181596360.

Almost surely, 2^129452770852 is an apocalyptic number.

It is an amenable number.

129452770852 is a deficient number, since it is larger than the sum of its proper divisors (97089578146).

129452770852 is a wasteful number, since it uses less digits than its factorization.

129452770852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32363192717 (or 32363192715 counting only the distinct ones).

The product of its (nonzero) digits is 2822400, while the sum is 52.

The spelling of 129452770852 in words is "one hundred twenty-nine billion, four hundred fifty-two million, seven hundred seventy thousand, eight hundred fifty-two".