4957771478 has 24 divisors (see below), whose sum is σ = 8249213280. Its totient is φ = 2232846000.

The previous prime is 4957771397. The next prime is 4957771493. The reversal of 4957771478 is 8741777594.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 67598 + ... + 120353.

It is an arithmetic number, because the mean of its divisors is an integer number (343717220).

Almost surely, 2^4957771478 is an apocalyptic number.

4957771478 is a deficient number, since it is larger than the sum of its proper divisors (3291441802).

4957771478 is a wasteful number, since it uses less digits than its factorization.

4957771478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188084 (or 188073 counting only the distinct ones).

The product of its digits is 13829760, while the sum is 59.

The square root of 4957771478 is about 70411.4442260631. Note that the first 3 decimals coincide. The cubic root of 4957771478 is about 1705.1483464404.

The spelling of 4957771478 in words is "four billion, nine hundred fifty-seven million, seven hundred seventy-one thousand, four hundred seventy-eight".