4977449977 has 4 divisors (see below), whose sum is σ = 5083353216. Its totient is φ = 4871546740.

The previous prime is 4977449963. The next prime is 4977450017. The reversal of 4977449977 is 7799447794.

It is a happy number.

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 4977449977 - 2¹⁵ = 4977417209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4977449947) 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, 52951549 + ... + 52951642.

It is an arithmetic number, because the mean of its divisors is an integer number (1270838304).

Almost surely, 2^4977449977 is an apocalyptic number.

4977449977 is a gapful number since it is divisible by the number (47) formed by its first and last digit.

It is an amenable number.

4977449977 is a deficient number, since it is larger than the sum of its proper divisors (105903239).

4977449977 is a wasteful number, since it uses less digits than its factorization.

4977449977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105903238.

The product of its digits is 112021056, while the sum is 67.

The square root of 4977449977 is about 70551.0451871551. The cubic root of 4977449977 is about 1707.4014059303.

The spelling of 4977449977 in words is "four billion, nine hundred seventy-seven million, four hundred forty-nine thousand, nine hundred seventy-seven".