49693379728 has 40 divisors (see below), whose sum is σ = 102427774560. Its totient is φ = 23274263040.

The previous prime is 49693379639. The next prime is 49693379737. The reversal of 49693379728 is 82797339694.

It is an unprimeable number.

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, 375538 + ... + 490321.

It is an arithmetic number, because the mean of its divisors is an integer number (2560694364).

Almost surely, 2^49693379728 is an apocalyptic number.

It is an amenable number.

49693379728 is an abundant number, since it is smaller than the sum of its proper divisors (52734394832).

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

49693379728 is a wasteful number, since it uses less digits than its factorization.

49693379728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 866095 (or 866089 counting only the distinct ones).

The product of its digits is 123451776, while the sum is 67.

The spelling of 49693379728 in words is "forty-nine billion, six hundred ninety-three million, three hundred seventy-nine thousand, seven hundred twenty-eight".