4549869261 has 24 divisors (see below), whose sum is σ = 7694092224. Its totient is φ = 2536511040.

The previous prime is 4549869253. The next prime is 4549869271. The reversal of 4549869261 is 1629689454.

4549869261 is a `hidden beast` number, since 4 + 5 + 498 + 6 + 92 + 61 = 666.

It is not a de Polignac number, because 4549869261 - 2³ = 4549869253 is a prime.

It is a super-2 number, since 2×4549869261² = 41402620584385372242, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4549869198 and 4549869207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4549869271) 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 23 ways as a sum of consecutive naturals, for example, 878151 + ... + 883316.

It is an arithmetic number, because the mean of its divisors is an integer number (320587176).

Almost surely, 2^4549869261 is an apocalyptic number.

4549869261 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

4549869261 is a deficient number, since it is larger than the sum of its proper divisors (3144222963).

4549869261 is a wasteful number, since it uses less digits than its factorization.

4549869261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1761521 (or 1761518 counting only the distinct ones).

The product of its digits is 3732480, while the sum is 54.

The square root of 4549869261 is about 67452.7187072545. The cubic root of 4549869261 is about 1657.0399249960.

The spelling of 4549869261 in words is "four billion, five hundred forty-nine million, eight hundred sixty-nine thousand, two hundred sixty-one".