4997611481 has 2 divisors, whose sum is σ = 4997611482. Its totient is φ = 4997611480.

The previous prime is 4997611469. The next prime is 4997611517. The reversal of 4997611481 is 1841167994.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2549341081 + 2448270400 = 50491^2 + 49480^2 .

It is a cyclic number.

It is not a de Polignac number, because 4997611481 - 2¹⁸ = 4997349337 is a prime.

It is a super-2 number, since 2×4997611481² = 49952241030046026722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4997611181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2498805740 + 2498805741.

It is an arithmetic number, because the mean of its divisors is an integer number (2498805741).

Almost surely, 2^4997611481 is an apocalyptic number.

It is an amenable number.

4997611481 is a deficient number, since it is larger than the sum of its proper divisors (1).

4997611481 is an equidigital number, since it uses as much as digits as its factorization.

4997611481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 435456, while the sum is 50.

The square root of 4997611481 is about 70693.7867213237. The cubic root of 4997611481 is about 1709.7036159717.

The spelling of 4997611481 in words is "four billion, nine hundred ninety-seven million, six hundred eleven thousand, four hundred eighty-one".