49531919947 has 4 divisors (see below), whose sum is σ = 49532418000. Its totient is φ = 49531421896.

The previous prime is 49531919917. The next prime is 49531919977. The reversal of 49531919947 is 74991913594.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is an interprime number because it is at equal distance from previous prime (49531919917) and next prime (49531919977).

It is a cyclic number.

It is not a de Polignac number, because 49531919947 - 2⁷ = 49531919819 is a prime.

It is a super-2 number, since 2×49531919947² (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 (49531919917) 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 3 ways as a sum of consecutive naturals, for example, 43072 + ... + 317677.

It is an arithmetic number, because the mean of its divisors is an integer number (12383104500).

Almost surely, 2^49531919947 is an apocalyptic number.

49531919947 is a deficient number, since it is larger than the sum of its proper divisors (498053).

49531919947 is a wasteful number, since it uses less digits than its factorization.

49531919947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 498052.

The product of its digits is 11022480, while the sum is 61.

The spelling of 49531919947 in words is "forty-nine billion, five hundred thirty-one million, nine hundred nineteen thousand, nine hundred forty-seven".