49786356481 has 4 divisors (see below), whose sum is σ = 49787471700. Its totient is φ = 49785241264.

The previous prime is 49786356467. The next prime is 49786356493. The reversal of 49786356481 is 18465368794.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 7426130625 + 42360225856 = 86175^2 + 205816^2 .

It is a cyclic number.

It is not a de Polignac number, because 49786356481 - 2⁷ = 49786356353 is a prime.

It is a super-2 number, since 2×49786356481² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49786356421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 487726 + ... + 580903.

It is an arithmetic number, because the mean of its divisors is an integer number (12446867925).

Almost surely, 2^49786356481 is an apocalyptic number.

It is an amenable number.

49786356481 is a deficient number, since it is larger than the sum of its proper divisors (1115219).

49786356481 is a wasteful number, since it uses less digits than its factorization.

49786356481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1115218.

The product of its digits is 34836480, while the sum is 61.

The spelling of 49786356481 in words is "forty-nine billion, seven hundred eighty-six million, three hundred fifty-six thousand, four hundred eighty-one".