4720128738 has 32 divisors (see below), whose sum is σ = 10338753600. Its totient is φ = 1427729856.

The previous prime is 4720128719. The next prime is 4720128757. The reversal of 4720128738 is 8378210274.

It is an interprime number because it is at equal distance from previous prime (4720128719) and next prime (4720128757).

It is a self number, because there is not a number n which added to its sum of digits gives 4720128738.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 508233 + ... + 517436.

It is an arithmetic number, because the mean of its divisors is an integer number (323086050).

Almost surely, 2^4720128738 is an apocalyptic number.

4720128738 is an abundant number, since it is smaller than the sum of its proper divisors (5618624862).

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

4720128738 is a wasteful number, since it uses less digits than its factorization.

4720128738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1025746.

The product of its (nonzero) digits is 150528, while the sum is 42.

The square root of 4720128738 is about 68703.1930699003. The cubic root of 4720128738 is about 1677.4565559040.

The spelling of 4720128738 in words is "four billion, seven hundred twenty million, one hundred twenty-eight thousand, seven hundred thirty-eight".