4920455681 has 2 divisors, whose sum is σ = 4920455682. Its totient is φ = 4920455680.

The previous prime is 4920455653. The next prime is 4920455699. The reversal of 4920455681 is 1865540294.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4898740081 + 21715600 = 69991^2 + 4660^2 .

It is a cyclic number.

It is not a de Polignac number, because 4920455681 - 2¹⁴ = 4920439297 is a prime.

It is a super-2 number, since 2×4920455681² = 48421768217370347522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4920455611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2460227840 + 2460227841.

It is an arithmetic number, because the mean of its divisors is an integer number (2460227841).

Almost surely, 2^4920455681 is an apocalyptic number.

It is an amenable number.

4920455681 is a deficient number, since it is larger than the sum of its proper divisors (1).

4920455681 is an equidigital number, since it uses as much as digits as its factorization.

4920455681 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 345600, while the sum is 44.

The square root of 4920455681 is about 70145.9598337638. The cubic root of 4920455681 is about 1700.8595055065.

The spelling of 4920455681 in words is "four billion, nine hundred twenty million, four hundred fifty-five thousand, six hundred eighty-one".