4972238642 has 54 divisors (see below), whose sum is σ = 9238474557. Its totient is φ = 2000822208.

The previous prime is 4972238641. The next prime is 4972238653. The reversal of 4972238642 is 2468322794.

It can be written as a sum of positive squares in 2 ways, for example, as 4550716681 + 421521961 = 67459^2 + 20531^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=49861.

It is a super-2 number, since 2×4972238642² = 49446314225996008328, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4972238641) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 11866709 + ... + 11867127.

Almost surely, 2^4972238642 is an apocalyptic number.

4972238642 is a deficient number, since it is larger than the sum of its proper divisors (4266235915).

4972238642 is an equidigital number, since it uses as much as digits as its factorization.

4972238642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 888 (or 445 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 47.

The square root of 4972238642 is about 70514.1024334849. The cubic root of 4972238642 is about 1706.8053210630.

The spelling of 4972238642 in words is "four billion, nine hundred seventy-two million, two hundred thirty-eight thousand, six hundred forty-two".