49947474993 has 16 divisors (see below), whose sum is σ = 71785491456. Its totient is φ = 30708604800.

The previous prime is 49947474991. The next prime is 49947475013. The reversal of 49947474993 is 39947474994.

49947474993 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 49947474993 - 2¹ = 49947474991 is a prime.

It is not an unprimeable number, because it can be changed into a prime (49947474991) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 546708 + ... + 631493.

It is an arithmetic number, because the mean of its divisors is an integer number (4486593216).

Almost surely, 2^49947474993 is an apocalyptic number.

It is an amenable number.

49947474993 is a deficient number, since it is larger than the sum of its proper divisors (21838016463).

49947474993 is a wasteful number, since it uses less digits than its factorization.

49947474993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1179304.

The product of its digits is 246903552, while the sum is 69.

Subtracting from 49947474993 its reverse (39947474994), we obtain a palindrome (9999999999).

The spelling of 49947474993 in words is "forty-nine billion, nine hundred forty-seven million, four hundred seventy-four thousand, nine hundred ninety-three".