49098421057 has 12 divisors (see below), whose sum is σ = 59597729856. Its totient is φ = 40254605160.

The previous prime is 49098421039. The next prime is 49098421067. The reversal of 49098421057 is 75012489094.

It is not a de Polignac number, because 49098421057 - 2¹¹ = 49098419009 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a self number, because there is not a number n which added to its sum of digits gives 49098421057.

It is not an unprimeable number, because it can be changed into a prime (49098421067) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21781669 + ... + 21783922.

It is an arithmetic number, because the mean of its divisors is an integer number (4966477488).

Almost surely, 2^49098421057 is an apocalyptic number.

It is an amenable number.

49098421057 is a deficient number, since it is larger than the sum of its proper divisors (10499308799).

49098421057 is a wasteful number, since it uses less digits than its factorization.

49098421057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43565628 (or 43565621 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 49.

The spelling of 49098421057 in words is "forty-nine billion, ninety-eight million, four hundred twenty-one thousand, fifty-seven".