4140263628661 has 8 divisors (see below), whose sum is σ = 4385085571224. Its totient is φ = 3895583577600.

The previous prime is 4140263628647. The next prime is 4140263628689. The reversal of 4140263628661 is 1668263620414.

It can be written as a sum of positive squares in 4 ways, for example, as 207653376100 + 3932610252561 = 455690^2 + 1983081^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4140263628661 - 2⁵ = 4140263628629 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4140263028661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35412790 + ... + 35529511.

It is an arithmetic number, because the mean of its divisors is an integer number (548135696403).

Almost surely, 2^{4140263628661} is an apocalyptic number.

It is an amenable number.

4140263628661 is a deficient number, since it is larger than the sum of its proper divisors (244821942563).

4140263628661 is a wasteful number, since it uses less digits than its factorization.

4140263628661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70945751.

The product of its (nonzero) digits is 1990656, while the sum is 49.

The spelling of 4140263628661 in words is "four trillion, one hundred forty billion, two hundred sixty-three million, six hundred twenty-eight thousand, six hundred sixty-one".