4921793077 has 4 divisors (see below), whose sum is σ = 4922002476. Its totient is φ = 4921583680.

The previous prime is 4921793057. The next prime is 4921793081. The reversal of 4921793077 is 7703971294.

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 248566756 + 4673226321 = 15766^2 + 68361^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4921793077 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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 4921793077.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4921793017) 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, 64228 + ... + 118189.

It is an arithmetic number, because the mean of its divisors is an integer number (1230500619).

Almost surely, 2^4921793077 is an apocalyptic number.

It is an amenable number.

4921793077 is a deficient number, since it is larger than the sum of its proper divisors (209399).

4921793077 is a wasteful number, since it uses less digits than its factorization.

4921793077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209398.

The product of its (nonzero) digits is 666792, while the sum is 49.

The square root of 4921793077 is about 70155.4921371093. The cubic root of 4921793077 is about 1701.0135912786.

The spelling of 4921793077 in words is "four billion, nine hundred twenty-one million, seven hundred ninety-three thousand, seventy-seven".