4918945973 has 4 divisors (see below), whose sum is σ = 4919093088. Its totient is φ = 4918798860.

The previous prime is 4918945961. The next prime is 4918945979. The reversal of 4918945973 is 3795498194.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 4918945973 - 2⁶ = 4918945909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4918945979) 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, 3518 + ... + 99248.

It is an arithmetic number, because the mean of its divisors is an integer number (1229773272).

Almost surely, 2^4918945973 is an apocalyptic number.

It is an amenable number.

4918945973 is a deficient number, since it is larger than the sum of its proper divisors (147115).

4918945973 is an equidigital number, since it uses as much as digits as its factorization.

4918945973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147114.

The product of its digits is 9797760, while the sum is 59.

The square root of 4918945973 is about 70135.1978182139. The cubic root of 4918945973 is about 1700.6855335526.

The spelling of 4918945973 in words is "four billion, nine hundred eighteen million, nine hundred forty-five thousand, nine hundred seventy-three".