49862749917 has 4 divisors (see below), whose sum is σ = 66483666560. Its totient is φ = 33241833276.

The previous prime is 49862749907. The next prime is 49862749943. The reversal of 49862749917 is 71994726894.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 49862749917 - 2²² = 49858555613 is a prime.

It is a super-4 number, since 4×49862749917⁴ (a number of 44 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49862749907) 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, 8310458317 + ... + 8310458322.

It is an arithmetic number, because the mean of its divisors is an integer number (16620916640).

Almost surely, 2^49862749917 is an apocalyptic number.

It is an amenable number.

49862749917 is a deficient number, since it is larger than the sum of its proper divisors (16620916643).

49862749917 is a wasteful number, since it uses less digits than its factorization.

49862749917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16620916642.

The product of its digits is 54867456, while the sum is 66.

The spelling of 49862749917 in words is "forty-nine billion, eight hundred sixty-two million, seven hundred forty-nine thousand, nine hundred seventeen".