2400564550361 has 4 divisors (see below), whose sum is σ = 2541774229812. Its totient is φ = 2259354870912.

The previous prime is 2400564550343. The next prime is 2400564550379. The reversal of 2400564550361 is 1630554650042.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (2400564550343) and next prime (2400564550379).

It can be written as a sum of positive squares in 2 ways, for example, as 2231232300361 + 169332250000 = 1493731^2 + 411500^2 .

It is a cyclic number.

It is not a de Polignac number, because 2400564550361 - 2³⁴ = 2383384681177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2400564550301) 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, 70604839700 + ... + 70604839733.

It is an arithmetic number, because the mean of its divisors is an integer number (635443557453).

Almost surely, 2^{2400564550361} is an apocalyptic number.

It is an amenable number.

2400564550361 is a deficient number, since it is larger than the sum of its proper divisors (141209679451).

2400564550361 is a wasteful number, since it uses less digits than its factorization.

2400564550361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141209679450.

The product of its (nonzero) digits is 432000, while the sum is 41.

The spelling of 2400564550361 in words is "two trillion, four hundred billion, five hundred sixty-four million, five hundred fifty thousand, three hundred sixty-one".