4313699981 has 4 divisors (see below), whose sum is σ = 4386813600. Its totient is φ = 4240586364.

The previous prime is 4313699959. The next prime is 4313699983. The reversal of 4313699981 is 1899963134.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1899963134 = 2 ⋅949981567.

It is a cyclic number.

It is not a de Polignac number, because 4313699981 - 2¹⁰ = 4313698957 is a prime.

It is a super-2 number, since 2×4313699981² = 37216015052158800722, 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 (4313699983) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36556721 + ... + 36556838.

It is an arithmetic number, because the mean of its divisors is an integer number (1096703400).

Almost surely, 2^4313699981 is an apocalyptic number.

It is an amenable number.

4313699981 is a deficient number, since it is larger than the sum of its proper divisors (73113619).

4313699981 is an equidigital number, since it uses as much as digits as its factorization.

4313699981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73113618.

The product of its digits is 1259712, while the sum is 53.

The square root of 4313699981 is about 65678.7635465224. The cubic root of 4313699981 is about 1627.8584772600.

The spelling of 4313699981 in words is "four billion, three hundred thirteen million, six hundred ninety-nine thousand, nine hundred eighty-one".