4538978494 has 8 divisors (see below), whose sum is σ = 6833778840. Its totient is φ = 2261052216.

The previous prime is 4538978473. The next prime is 4538978503. The reversal of 4538978494 is 4948798354.

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

It is a super-3 number, since 3×4538978494³ (a number of 30 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4217844 + ... + 4218919.

It is an arithmetic number, because the mean of its divisors is an integer number (854222355).

Almost surely, 2^4538978494 is an apocalyptic number.

4538978494 is a deficient number, since it is larger than the sum of its proper divisors (2294800346).

4538978494 is a wasteful number, since it uses less digits than its factorization.

4538978494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8437034.

The product of its digits is 34836480, while the sum is 61.

The square root of 4538978494 is about 67371.9414444916. The cubic root of 4538978494 is about 1655.7167475017.

The spelling of 4538978494 in words is "four billion, five hundred thirty-eight million, nine hundred seventy-eight thousand, four hundred ninety-four".