4792001981 has 8 divisors (see below), whose sum is σ = 5169212664. Its totient is φ = 4416019200.

The previous prime is 4792001971. The next prime is 4792001993. The reversal of 4792001981 is 1891002974.

It can be written as a sum of positive squares in 4 ways, for example, as 2669956 + 4789332025 = 1634^2 + 69205^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4792001981 - 2¹⁸ = 4791739837 is a prime.

It is a super-2 number, since 2×4792001981² = 45926565971815848722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4792001911) 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, 298856 + ... + 314481.

It is an arithmetic number, because the mean of its divisors is an integer number (646151583).

Almost surely, 2^4792001981 is an apocalyptic number.

It is an amenable number.

4792001981 is a deficient number, since it is larger than the sum of its proper divisors (377210683).

4792001981 is a wasteful number, since it uses less digits than its factorization.

4792001981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 613951.

The product of its (nonzero) digits is 36288, while the sum is 41.

The square root of 4792001981 is about 69224.2875080705. The cubic root of 4792001981 is about 1685.9278943969.

The spelling of 4792001981 in words is "four billion, seven hundred ninety-two million, one thousand, nine hundred eighty-one".