4945061761 has 4 divisors (see below), whose sum is σ = 4952705472. Its totient is φ = 4937418052.

The previous prime is 4945061669. The next prime is 4945061851. The reversal of 4945061761 is 1671605494.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4945061761 - 2¹⁵ = 4945028993 is a prime.

It is a super-2 number, since 2×4945061761² = 48907271640208842242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4945061461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3820885 + ... + 3822178.

It is an arithmetic number, because the mean of its divisors is an integer number (1238176368).

Almost surely, 2^4945061761 is an apocalyptic number.

It is an amenable number.

4945061761 is a deficient number, since it is larger than the sum of its proper divisors (7643711).

4945061761 is an equidigital number, since it uses as much as digits as its factorization.

4945061761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7643710.

The product of its (nonzero) digits is 181440, while the sum is 43.

The square root of 4945061761 is about 70321.1331037832. The cubic root of 4945061761 is about 1703.6899963993.

The spelling of 4945061761 in words is "four billion, nine hundred forty-five million, sixty-one thousand, seven hundred sixty-one".