49739781219 has 4 divisors (see below), whose sum is σ = 66319708296. Its totient is φ = 33159854144.

The previous prime is 49739781197. The next prime is 49739781239. The reversal of 49739781219 is 91218793794.

49739781219 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 49739781219 - 2⁸ = 49739780963 is a prime.

It is a super-2 number, since 2×49739781219² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (49739781239) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8289963534 + ... + 8289963539.

It is an arithmetic number, because the mean of its divisors is an integer number (16579927074).

Almost surely, 2^49739781219 is an apocalyptic number.

49739781219 is a deficient number, since it is larger than the sum of its proper divisors (16579927077).

49739781219 is a wasteful number, since it uses less digits than its factorization.

49739781219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16579927076.

The product of its digits is 6858432, while the sum is 60.

The spelling of 49739781219 in words is "forty-nine billion, seven hundred thirty-nine million, seven hundred eighty-one thousand, two hundred nineteen".