52849991745 has 24 divisors (see below), whose sum is σ = 92513656872. Its totient is φ = 27907584000.

The previous prime is 52849991743. The next prime is 52849991791. The reversal of 52849991745 is 54719994825.

52849991745 is a `hidden beast` number, since 52 + 8 + 499 + 91 + 7 + 4 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 18547988481 + 34302003264 = 136191^2 + 185208^2 .

It is not a de Polignac number, because 52849991745 - 2¹ = 52849991743 is a prime.

It is not an unprimeable number, because it can be changed into a prime (52849991741) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5809536 + ... + 5818625.

It is an arithmetic number, because the mean of its divisors is an integer number (3854735703).

Almost surely, 2^52849991745 is an apocalyptic number.

It is an amenable number.

52849991745 is a deficient number, since it is larger than the sum of its proper divisors (39663665127).

52849991745 is a wasteful number, since it uses less digits than its factorization.

52849991745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11628273 (or 11628270 counting only the distinct ones).

The product of its digits is 32659200, while the sum is 63.

The spelling of 52849991745 in words is "fifty-two billion, eight hundred forty-nine million, nine hundred ninety-one thousand, seven hundred forty-five".