49557781393 has 8 divisors (see below), whose sum is σ = 50301871200. Its totient is φ = 48813821760.

The previous prime is 49557781369. The next prime is 49557781417. The reversal of 49557781393 is 39318775594.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (49557781369) and next prime (49557781417).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 49557781393 - 2²⁹ = 49020910481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49557781303) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 959673 + ... + 1009993.

It is an arithmetic number, because the mean of its divisors is an integer number (6287733900).

Almost surely, 2^49557781393 is an apocalyptic number.

It is an amenable number.

49557781393 is a deficient number, since it is larger than the sum of its proper divisors (744089807).

49557781393 is a wasteful number, since it uses less digits than its factorization.

49557781393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65087.

The product of its digits is 28576800, while the sum is 61.

The spelling of 49557781393 in words is "forty-nine billion, five hundred fifty-seven million, seven hundred eighty-one thousand, three hundred ninety-three".