4987797261 has 16 divisors (see below), whose sum is σ = 6888178560. Its totient is φ = 3206589120.

The previous prime is 4987797253. The next prime is 4987797277. The reversal of 4987797261 is 1627977894.

It is not a de Polignac number, because 4987797261 - 2³ = 4987797253 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4987797195 and 4987797204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4987797211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36771 + ... + 106431.

It is an arithmetic number, because the mean of its divisors is an integer number (430511160).

Almost surely, 2^4987797261 is an apocalyptic number.

It is an amenable number.

4987797261 is a deficient number, since it is larger than the sum of its proper divisors (1900381299).

4987797261 is a wasteful number, since it uses less digits than its factorization.

4987797261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70516.

The product of its digits is 10668672, while the sum is 60.

The square root of 4987797261 is about 70624.3390128361. The cubic root of 4987797261 is about 1708.5837207855.

The spelling of 4987797261 in words is "four billion, nine hundred eighty-seven million, seven hundred ninety-seven thousand, two hundred sixty-one".