49151835440569 has 45 divisors (see below), whose sum is σ = 53335741812717. Its totient is φ = 45294269608896.

The previous prime is 49151835440563. The next prime is 49151835440623. The reversal of 49151835440569 is 96504453815194.

The square root of 49151835440569 is 7010837.

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

It can be written as a sum of positive squares in 4 ways, for example, as 8666458893225 + 40485376547344 = 2943885^2 + 6362812^2 .

It is not a de Polignac number, because 49151835440569 - 2⁴³ = 40355742418361 is a prime.

It is a super-2 number, since 2×49151835440569² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 49151835440569.

It is not an unprimeable number, because it can be changed into a prime (49151835440563) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 107553250189 + ... + 107553250645.

Almost surely, 2^{49151835440569} is an apocalyptic number.

49151835440569 is the 7010837-th square number.

49151835440569 is the 3505419-th centered octagonal number.

It is an amenable number.

49151835440569 is a deficient number, since it is larger than the sum of its proper divisors (4183906372148).

49151835440569 is an frugal number, since it uses more digits than its factorization.

49151835440569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1064 (or 509 counting only the distinct ones).

The product of its (nonzero) digits is 93312000, while the sum is 64.

The spelling of 49151835440569 in words is "forty-nine trillion, one hundred fifty-one billion, eight hundred thirty-five million, four hundred forty thousand, five hundred sixty-nine".