49116681 has 12 divisors (see below), whose sum is σ = 71007300. Its totient is φ = 32716320.

The previous prime is 49116677. The next prime is 49116709. The reversal of 49116681 is 18661194.

It is a happy number.

49116681 is a `hidden beast` number, since 491 + 166 + 8 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 46172025 + 2944656 = 6795^2 + 1716^2 .

It is not a de Polignac number, because 49116681 - 2² = 49116677 is a prime.

It is a super-2 number, since 2×49116681² = 4824896704911522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (49116601) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17995 + ... + 20543.

It is an arithmetic number, because the mean of its divisors is an integer number (5917275).

Almost surely, 2^49116681 is an apocalyptic number.

It is an amenable number.

49116681 is a deficient number, since it is larger than the sum of its proper divisors (21890619).

49116681 is a wasteful number, since it uses less digits than its factorization.

49116681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4696 (or 4693 counting only the distinct ones).

The product of its digits is 10368, while the sum is 36.

The square root of 49116681 is about 7008.3294015050. The cubic root of 49116681 is about 366.2207975256.

The spelling of 49116681 in words is "forty-nine million, one hundred sixteen thousand, six hundred eighty-one".