612406290129 has 4 divisors (see below), whose sum is σ = 816541720176. Its totient is φ = 408270860084.

The previous prime is 612406290113. The next prime is 612406290161. The reversal of 612406290129 is 921092604216.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 612406290129 - 2⁴ = 612406290113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (612406290109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102067715019 + ... + 102067715024.

It is an arithmetic number, because the mean of its divisors is an integer number (204135430044).

Almost surely, 2^612406290129 is an apocalyptic number.

It is an amenable number.

612406290129 is a deficient number, since it is larger than the sum of its proper divisors (204135430047).

612406290129 is a wasteful number, since it uses less digits than its factorization.

612406290129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204135430046.

The product of its (nonzero) digits is 93312, while the sum is 42.

The spelling of 612406290129 in words is "six hundred twelve billion, four hundred six million, two hundred ninety thousand, one hundred twenty-nine".