4877412781 has 2 divisors, whose sum is σ = 4877412782. Its totient is φ = 4877412780.

The previous prime is 4877412737. The next prime is 4877412791. The reversal of 4877412781 is 1872147784.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4862272900 + 15139881 = 69730^2 + 3891^2 .

It is a cyclic number.

It is not a de Polignac number, because 4877412781 - 2¹³ = 4877404589 is a prime.

It is a super-2 number, since 2×4877412781² = 47578310872524307922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4877412791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2438706390 + 2438706391.

It is an arithmetic number, because the mean of its divisors is an integer number (2438706391).

Almost surely, 2^4877412781 is an apocalyptic number.

It is an amenable number.

4877412781 is a deficient number, since it is larger than the sum of its proper divisors (1).

4877412781 is an equidigital number, since it uses as much as digits as its factorization.

4877412781 is an evil number, because the sum of its binary digits is even.

The product of its digits is 702464, while the sum is 49.

The square root of 4877412781 is about 69838.4763651098. The cubic root of 4877412781 is about 1695.8854104311.

The spelling of 4877412781 in words is "four billion, eight hundred seventy-seven million, four hundred twelve thousand, seven hundred eighty-one".