4964261681 has 4 divisors (see below), whose sum is σ = 5256277092. Its totient is φ = 4672246272.

The previous prime is 4964261671. The next prime is 4964261713. The reversal of 4964261681 is 1861624694.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2504101681 + 2460160000 = 50041^2 + 49600^2 .

It is a de Polignac number, because none of the positive numbers 2^k-4964261681 is a prime.

It is a super-2 number, since 2×4964261681² = 49287788074889891522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4964261611) 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, 146007680 + ... + 146007713.

It is an arithmetic number, because the mean of its divisors is an integer number (1314069273).

Almost surely, 2^4964261681 is an apocalyptic number.

It is an amenable number.

4964261681 is a deficient number, since it is larger than the sum of its proper divisors (292015411).

4964261681 is a wasteful number, since it uses less digits than its factorization.

4964261681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292015410.

The product of its digits is 497664, while the sum is 47.

The square root of 4964261681 is about 70457.5168523558. The cubic root of 4964261681 is about 1705.8920900974.

The spelling of 4964261681 in words is "four billion, nine hundred sixty-four million, two hundred sixty-one thousand, six hundred eighty-one".