2358045861649 has 27 divisors (see below), whose sum is σ = 2549754948891. Its totient is φ = 2180296365120.

The previous prime is 2358045861641. The next prime is 2358045861667. The reversal of 2358045861649 is 9461685408532.

The square root of 2358045861649 is 1535593.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 1835848854225 + 522197007424 = 1354935^2 + 722632^2 .

It is not a de Polignac number, because 2358045861649 - 2³ = 2358045861641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2358045861641) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 1540199014 + ... + 1540200544.

Almost surely, 2^{2358045861649} is an apocalyptic number.

2358045861649 is the 1535593-rd square number.

2358045861649 is the 767797-th centered octagonal number.

It is an amenable number.

2358045861649 is a deficient number, since it is larger than the sum of its proper divisors (191709087242).

2358045861649 is an frugal number, since it uses more digits than its factorization.

2358045861649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3214 (or 1607 counting only the distinct ones).

The product of its (nonzero) digits is 49766400, while the sum is 61.

The spelling of 2358045861649 in words is "two trillion, three hundred fifty-eight billion, forty-five million, eight hundred sixty-one thousand, six hundred forty-nine".