49776866791 has 8 divisors (see below), whose sum is σ = 50420940800. Its totient is φ = 49136732568.

The previous prime is 49776866773. The next prime is 49776866819. The reversal of 49776866791 is 19766867794.

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

It is a cyclic number.

It is not a de Polignac number, because 49776866791 - 2⁷ = 49776866663 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 49776866791.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49776866701) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 959511 + ... + 1010056.

It is an arithmetic number, because the mean of its divisors is an integer number (6302617600).

Almost surely, 2^49776866791 is an apocalyptic number.

49776866791 is a deficient number, since it is larger than the sum of its proper divisors (644074009).

49776866791 is a wasteful number, since it uses less digits than its factorization.

49776866791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1969893.

The product of its digits is 192036096, while the sum is 70.

The spelling of 49776866791 in words is "forty-nine billion, seven hundred seventy-six million, eight hundred sixty-six thousand, seven hundred ninety-one".