49974657861 has 8 divisors (see below), whose sum is σ = 67157545984. Its totient is φ = 33054104160.

The previous prime is 49974657823. The next prime is 49974657877. The reversal of 49974657861 is 16875647994.

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

It is not a de Polignac number, because 49974657861 - 2¹¹ = 49974655813 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 49974657792 and 49974657801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49974657881) 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, 65583160 + ... + 65583921.

It is an arithmetic number, because the mean of its divisors is an integer number (8394693248).

Almost surely, 2^49974657861 is an apocalyptic number.

It is an amenable number.

49974657861 is a deficient number, since it is larger than the sum of its proper divisors (17182888123).

49974657861 is a wasteful number, since it uses less digits than its factorization.

49974657861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131167211.

The product of its digits is 91445760, while the sum is 66.

The spelling of 49974657861 in words is "forty-nine billion, nine hundred seventy-four million, six hundred fifty-seven thousand, eight hundred sixty-one".