49866017952431 has 4 divisors (see below), whose sum is σ = 49866033520632. Its totient is φ = 49866002384232.

The previous prime is 49866017952379. The next prime is 49866017952469. The reversal of 49866017952431 is 13425971066894.

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 49866017952431 - 2⁴² = 45467971441327 is a prime.

It is a super-2 number, since 2×49866017952431² (a number of 28 digits) contains 22 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 (49866017922431) 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, 1020581 + ... + 10038606.

It is an arithmetic number, because the mean of its divisors is an integer number (12466508380158).

It is a 1-persistent number, because it is pandigital, but 2⋅49866017952431 = 99732035904862 is not.

Almost surely, 2^{49866017952431} is an apocalyptic number.

49866017952431 is a deficient number, since it is larger than the sum of its proper divisors (15568201).

49866017952431 is a wasteful number, since it uses less digits than its factorization.

49866017952431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15568200.

The product of its (nonzero) digits is 78382080, while the sum is 65.

The spelling of 49866017952431 in words is "forty-nine trillion, eight hundred sixty-six billion, seventeen million, nine hundred fifty-two thousand, four hundred thirty-one".