49148981539 has 8 divisors (see below), whose sum is σ = 56208987648. Its totient is φ = 42098656200.

The previous prime is 49148981533. The next prime is 49148981551. The reversal of 49148981539 is 93518984194.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 49148981539 - 2¹¹ = 49148979491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49148981533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2409307 + ... + 2429620.

It is an arithmetic number, because the mean of its divisors is an integer number (7026123456).

Almost surely, 2^49148981539 is an apocalyptic number.

49148981539 is a deficient number, since it is larger than the sum of its proper divisors (7060006109).

49148981539 is a wasteful number, since it uses less digits than its factorization.

49148981539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4840385.

The product of its digits is 11197440, while the sum is 61.

The spelling of 49148981539 in words is "forty-nine billion, one hundred forty-eight million, nine hundred eighty-one thousand, five hundred thirty-nine".