4945214468641 has 4 divisors (see below), whose sum is σ = 4945356293652. Its totient is φ = 4945072643632.

The previous prime is 4945214468617. The next prime is 4945214468651. The reversal of 4945214468641 is 1468644125494.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2677464599616 + 2267749869025 = 1636296^2 + 1505905^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4945214468641 is a prime.

It is a super-2 number, since 2×4945214468641² (a number of 26 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4945214468651) 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, 70860190 + ... + 70929943.

It is an arithmetic number, because the mean of its divisors is an integer number (1236339073413).

Almost surely, 2^{4945214468641} is an apocalyptic number.

It is an amenable number.

4945214468641 is a deficient number, since it is larger than the sum of its proper divisors (141825011).

4945214468641 is a wasteful number, since it uses less digits than its factorization.

4945214468641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141825010.

The product of its digits is 26542080, while the sum is 58.

The spelling of 4945214468641 in words is "four trillion, nine hundred forty-five billion, two hundred fourteen million, four hundred sixty-eight thousand, six hundred forty-one".