4894501781 has 6 divisors (see below), whose sum is σ = 5299963650. Its totient is φ = 4518001488.

The previous prime is 4894501751. The next prime is 4894501811. The reversal of 4894501781 is 1871054984.

It is an interprime number because it is at equal distance from previous prime (4894501751) and next prime (4894501811).

It can be written as a sum of positive squares in 3 ways, for example, as 240100 + 4894261681 = 490^2 + 69959^2 .

It is not a de Polignac number, because 4894501781 - 2²⁶ = 4827392917 is a prime.

It is a super-2 number, since 2×4894501781² = 47912295368424343922, 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 (4894501721) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 14480606 + ... + 14480943.

It is an arithmetic number, because the mean of its divisors is an integer number (883327275).

Almost surely, 2^4894501781 is an apocalyptic number.

It is an amenable number.

4894501781 is a deficient number, since it is larger than the sum of its proper divisors (405461869).

4894501781 is a wasteful number, since it uses less digits than its factorization.

4894501781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28961575 (or 28961562 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 47.

The square root of 4894501781 is about 69960.7159840435. The cubic root of 4894501781 is about 1697.8637273447.

The spelling of 4894501781 in words is "four billion, eight hundred ninety-four million, five hundred one thousand, seven hundred eighty-one".