49687924739 has 4 divisors (see below), whose sum is σ = 50429535624. Its totient is φ = 48946313856.

The previous prime is 49687924733. The next prime is 49687924747. The reversal of 49687924739 is 93742978694.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93742978694 = 2 ⋅46871489347.

It is a cyclic number.

It is not a de Polignac number, because 49687924739 - 2³² = 45392957443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49687924733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 370805342 + ... + 370805475.

It is an arithmetic number, because the mean of its divisors is an integer number (12607383906).

Almost surely, 2^49687924739 is an apocalyptic number.

49687924739 is a deficient number, since it is larger than the sum of its proper divisors (741610885).

49687924739 is an equidigital number, since it uses as much as digits as its factorization.

49687924739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 741610884.

The product of its digits is 164602368, while the sum is 68.

The spelling of 49687924739 in words is "forty-nine billion, six hundred eighty-seven million, nine hundred twenty-four thousand, seven hundred thirty-nine".