4997139906 has 16 divisors (see below), whose sum is σ = 10902850848. Its totient is φ = 1514284800.

The previous prime is 4997139899. The next prime is 4997139907. The reversal of 4997139906 is 6099317994.

It is not an unprimeable number, because it can be changed into a prime (4997139907) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37857055 + ... + 37857186.

It is an arithmetic number, because the mean of its divisors is an integer number (681428178).

Almost surely, 2^4997139906 is an apocalyptic number.

4997139906 is an abundant number, since it is smaller than the sum of its proper divisors (5905710942).

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

4997139906 is a wasteful number, since it uses less digits than its factorization.

4997139906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75714257.

The product of its (nonzero) digits is 3306744, while the sum is 57.

The square root of 4997139906 is about 70690.4513070896. The cubic root of 4997139906 is about 1709.6498383591.

The spelling of 4997139906 in words is "four billion, nine hundred ninety-seven million, one hundred thirty-nine thousand, nine hundred six".