513729129002 has 8 divisors (see below), whose sum is σ = 785133197316. Its totient is φ = 252018063232.

The previous prime is 513729128987. The next prime is 513729129013. The reversal of 513729129002 is 200921927315.

It is a Cunningham number, because it is equal to 716749²+1.

It can be written as a sum of positive squares in 2 ways, for example, as 513729129001 + 1 = 716749^2 + 1^2 .

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

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, 2423250503 + ... + 2423250714.

Almost surely, 2^513729129002 is an apocalyptic number.

513729129002 is a deficient number, since it is larger than the sum of its proper divisors (271404068314).

513729129002 is a wasteful number, since it uses less digits than its factorization.

513729129002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4846501272.

The product of its (nonzero) digits is 68040, while the sum is 41.

The spelling of 513729129002 in words is "five hundred thirteen billion, seven hundred twenty-nine million, one hundred twenty-nine thousand, two".