49966329929 has 4 divisors (see below), whose sum is σ = 50650800276. Its totient is φ = 49281859584.

The previous prime is 49966329911. The next prime is 49966329937. The reversal of 49966329929 is 92992366994.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 42851070025 + 7115259904 = 207005^2 + 84352^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49966329929 is a prime.

It is a super-2 number, since 2×49966329929² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49966319929) 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, 342235064 + ... + 342235209.

It is an arithmetic number, because the mean of its divisors is an integer number (12662700069).

Almost surely, 2^49966329929 is an apocalyptic number.

It is an amenable number.

49966329929 is a deficient number, since it is larger than the sum of its proper divisors (684470347).

49966329929 is an equidigital number, since it uses as much as digits as its factorization.

49966329929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 684470346.

The product of its digits is 102036672, while the sum is 68.

The spelling of 49966329929 in words is "forty-nine billion, nine hundred sixty-six million, three hundred twenty-nine thousand, nine hundred twenty-nine".