4978354873 has 4 divisors (see below), whose sum is σ = 4978500580. Its totient is φ = 4978209168.

The previous prime is 4978354769. The next prime is 4978354903. The reversal of 4978354873 is 3784538794.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 813846784 + 4164508089 = 28528^2 + 64533^2 .

It is a cyclic number.

It is not a de Polignac number, because 4978354873 - 2²⁹ = 4441483961 is a prime.

It is a super-2 number, since 2×4978354873² = 49568034483045692258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4978354373) 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, 9211 + ... + 100207.

It is an arithmetic number, because the mean of its divisors is an integer number (1244625145).

Almost surely, 2^4978354873 is an apocalyptic number.

It is an amenable number.

4978354873 is a deficient number, since it is larger than the sum of its proper divisors (145707).

4978354873 is an equidigital number, since it uses as much as digits as its factorization.

4978354873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145706.

The product of its digits is 20321280, while the sum is 58.

The square root of 4978354873 is about 70557.4579544927. The cubic root of 4978354873 is about 1707.5048676822.

The spelling of 4978354873 in words is "four billion, nine hundred seventy-eight million, three hundred fifty-four thousand, eight hundred seventy-three".