49961977998 has 8 divisors (see below), whose sum is σ = 99923956008. Its totient is φ = 16653992664.

The previous prime is 49961977981. The next prime is 49961978009. The reversal of 49961977998 is 89977916994.

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

49961977998 is an admirable number.

It is a congruent number.

It is an unprimeable number.

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, 4163498161 + ... + 4163498172.

It is an arithmetic number, because the mean of its divisors is an integer number (12490494501).

Almost surely, 2^49961977998 is an apocalyptic number.

49961977998 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

49961977998 is a wasteful number, since it uses less digits than its factorization.

49961977998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8326996338.

The product of its digits is 555532992, while the sum is 78.

The spelling of 49961977998 in words is "forty-nine billion, nine hundred sixty-one million, nine hundred seventy-seven thousand, nine hundred ninety-eight".