49455391671 has 20 divisors (see below), whose sum is σ = 84431780752. Its totient is φ = 28260223488.

The previous prime is 49455391651. The next prime is 49455391673. The reversal of 49455391671 is 17619355494.

49455391671 is a `hidden beast` number, since 4 + 9 + 4 + 553 + 9 + 16 + 71 = 666.

It is not a de Polignac number, because 49455391671 - 2¹⁷ = 49455260599 is a prime.

It is a super-4 number, since 4×49455391671⁴ (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 (49455391673) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 43610890 + ... + 43612023.

Almost surely, 2^49455391671 is an apocalyptic number.

49455391671 is a deficient number, since it is larger than the sum of its proper divisors (34976389081).

49455391671 is an equidigital number, since it uses as much as digits as its factorization.

49455391671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87222932 (or 87222923 counting only the distinct ones).

The product of its digits is 4082400, while the sum is 54.

The spelling of 49455391671 in words is "forty-nine billion, four hundred fifty-five million, three hundred ninety-one thousand, six hundred seventy-one".