49638472619 has 4 divisors (see below), whose sum is σ = 49640577144. Its totient is φ = 49636368096.

The previous prime is 49638472549. The next prime is 49638472673. The reversal of 49638472619 is 91627483694.

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 49638472619 - 2²⁸ = 49370037163 is a prime.

It is a super-2 number, since 2×49638472619² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49638472679) 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, 1016477 + ... + 1064190.

It is an arithmetic number, because the mean of its divisors is an integer number (12410144286).

Almost surely, 2^49638472619 is an apocalyptic number.

49638472619 is a deficient number, since it is larger than the sum of its proper divisors (2104525).

49638472619 is a wasteful number, since it uses less digits than its factorization.

49638472619 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2104524.

The product of its digits is 15676416, while the sum is 59.

The spelling of 49638472619 in words is "forty-nine billion, six hundred thirty-eight million, four hundred seventy-two thousand, six hundred nineteen".