4731992478 has 12 divisors (see below), whose sum is σ = 10252650408. Its totient is φ = 1577330820.

The previous prime is 4731992471. The next prime is 4731992497. The reversal of 4731992478 is 8742991374.

4731992478 is a `hidden beast` number, since 4 + 73 + 19 + 92 + 478 = 666.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4731992471) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 131444218 + ... + 131444253.

It is an arithmetic number, because the mean of its divisors is an integer number (854387534).

Almost surely, 2^4731992478 is an apocalyptic number.

4731992478 is an abundant number, since it is smaller than the sum of its proper divisors (5520657930).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4731992478 is a wasteful number, since it uses less digits than its factorization.

4731992478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262888479 (or 262888476 counting only the distinct ones).

The product of its digits is 3048192, while the sum is 54.

The square root of 4731992478 is about 68789.4794136429. The cubic root of 4731992478 is about 1678.8607731453.

The spelling of 4731992478 in words is "four billion, seven hundred thirty-one million, nine hundred ninety-two thousand, four hundred seventy-eight".