49797760165 has 16 divisors (see below), whose sum is σ = 60529906800. Its totient is φ = 39325865472.

The previous prime is 49797760163. The next prime is 49797760169. The reversal of 49797760165 is 56106779794.

It can be written as a sum of positive squares in 8 ways, for example, as 1370036196 + 48427723969 = 37014^2 + 220063^2 .

It is a cyclic number.

It is not a de Polignac number, because 49797760165 - 2¹ = 49797760163 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49797760163) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23232 + ... + 316441.

It is an arithmetic number, because the mean of its divisors is an integer number (3783119175).

Almost surely, 2^49797760165 is an apocalyptic number.

It is an amenable number.

49797760165 is a deficient number, since it is larger than the sum of its proper divisors (10732146635).

49797760165 is a wasteful number, since it uses less digits than its factorization.

49797760165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340056.

The product of its (nonzero) digits is 20003760, while the sum is 61.

The spelling of 49797760165 in words is "forty-nine billion, seven hundred ninety-seven million, seven hundred sixty thousand, one hundred sixty-five".