650129813969 has 4 divisors (see below), whose sum is σ = 650135446896. Its totient is φ = 650124181044.

The previous prime is 650129813947. The next prime is 650129814001. The reversal of 650129813969 is 969318921056.

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 650129813969 - 2⁸ = 650129813713 is a prime.

It is a super-2 number, since 2×650129813969² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (650129813909) 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, 2639639 + ... + 2875404.

It is an arithmetic number, because the mean of its divisors is an integer number (162533861724).

Almost surely, 2^650129813969 is an apocalyptic number.

It is an amenable number.

650129813969 is a deficient number, since it is larger than the sum of its proper divisors (5632927).

650129813969 is a wasteful number, since it uses less digits than its factorization.

650129813969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5632926.

The product of its (nonzero) digits is 6298560, while the sum is 59.

The spelling of 650129813969 in words is "six hundred fifty billion, one hundred twenty-nine million, eight hundred thirteen thousand, nine hundred sixty-nine".