4693807981 has 8 divisors (see below), whose sum is σ = 4745981240. Its totient is φ = 4641712128.

The previous prime is 4693807957. The next prime is 4693807999. The reversal of 4693807981 is 1897083964.

It can be written as a sum of positive squares in 4 ways, for example, as 2068885225 + 2624922756 = 45485^2 + 51234^2 .

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 4693807981 - 2¹⁷ = 4693676909 is a prime.

It is a super-2 number, since 2×4693807981² = 44063666724998592722, 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 (4693808981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107155 + ... + 144463.

It is an arithmetic number, because the mean of its divisors is an integer number (593247655).

Almost surely, 2^4693807981 is an apocalyptic number.

It is an amenable number.

4693807981 is a deficient number, since it is larger than the sum of its proper divisors (52173259).

4693807981 is a wasteful number, since it uses less digits than its factorization.

4693807981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38703.

The product of its (nonzero) digits is 2612736, while the sum is 55.

The square root of 4693807981 is about 68511.3711802647. The cubic root of 4693807981 is about 1674.3327534360.

The spelling of 4693807981 in words is "four billion, six hundred ninety-three million, eight hundred seven thousand, nine hundred eighty-one".