49805036381 has 4 divisors (see below), whose sum is σ = 50649189600. Its totient is φ = 48960883164.

The previous prime is 49805036377. The next prime is 49805036383. The reversal of 49805036381 is 18363050894.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 49805036381 - 2² = 49805036377 is a prime.

It is a super-2 number, since 2×49805036381² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49805036383) 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, 422076521 + ... + 422076638.

It is an arithmetic number, because the mean of its divisors is an integer number (12662297400).

Almost surely, 2^49805036381 is an apocalyptic number.

It is an amenable number.

49805036381 is a deficient number, since it is larger than the sum of its proper divisors (844153219).

49805036381 is an equidigital number, since it uses as much as digits as its factorization.

49805036381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 844153218.

The product of its (nonzero) digits is 622080, while the sum is 47.

The spelling of 49805036381 in words is "forty-nine billion, eight hundred five million, thirty-six thousand, three hundred eighty-one".