4997929478 has 4 divisors (see below), whose sum is σ = 7496894220. Its totient is φ = 2498964738.

The previous prime is 4997929477. The next prime is 4997929487. The reversal of 4997929478 is 8749297994.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×4997929478² = 49958598134122704968, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4997929477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1249482368 + ... + 1249482371.

It is an arithmetic number, because the mean of its divisors is an integer number (1874223555).

Almost surely, 2^4997929478 is an apocalyptic number.

4997929478 is a deficient number, since it is larger than the sum of its proper divisors (2498964742).

4997929478 is a wasteful number, since it uses less digits than its factorization.

4997929478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2498964741.

The product of its digits is 82301184, while the sum is 68.

The square root of 4997929478 is about 70696.0358011678. The cubic root of 4997929478 is about 1709.7398779002.

The spelling of 4997929478 in words is "four billion, nine hundred ninety-seven million, nine hundred twenty-nine thousand, four hundred seventy-eight".