49665354281 has 8 divisors (see below), whose sum is σ = 50489272128. Its totient is φ = 48847950000.

The previous prime is 49665354251. The next prime is 49665354283. The reversal of 49665354281 is 18245356694.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49665354281 is a prime.

It is a super-2 number, since 2×49665354281² (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 (49665354283) 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, 1613015 + ... + 1643516.

It is an arithmetic number, because the mean of its divisors is an integer number (6311159016).

Almost surely, 2^49665354281 is an apocalyptic number.

It is an amenable number.

49665354281 is a deficient number, since it is larger than the sum of its proper divisors (823917847).

49665354281 is a wasteful number, since it uses less digits than its factorization.

49665354281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3256783.

The product of its digits is 6220800, while the sum is 53.

The spelling of 49665354281 in words is "forty-nine billion, six hundred sixty-five million, three hundred fifty-four thousand, two hundred eighty-one".