49777838421 has 8 divisors (see below), whose sum is σ = 66489610464. Its totient is φ = 33125646000.

The previous prime is 49777838377. The next prime is 49777838477. The reversal of 49777838421 is 12483877794.

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

It is not a de Polignac number, because 49777838421 - 2¹⁹ = 49777314133 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49777838491) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14892955 + ... + 14896296.

It is an arithmetic number, because the mean of its divisors is an integer number (8311201308).

Almost surely, 2^49777838421 is an apocalyptic number.

It is an amenable number.

49777838421 is a deficient number, since it is larger than the sum of its proper divisors (16711772043).

49777838421 is a wasteful number, since it uses less digits than its factorization.

49777838421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29789811.

The product of its digits is 18966528, while the sum is 60.

The spelling of 49777838421 in words is "forty-nine billion, seven hundred seventy-seven million, eight hundred thirty-eight thousand, four hundred twenty-one".