49897454098969 has 9 divisors (see below), whose sum is σ = 50005232498197. Its totient is φ = 49789907546044.

The previous prime is 49897454098909. The next prime is 49897454099021. The reversal of 49897454098969 is 96989045479894.

The square root of 49897454098969 is 7063813.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 49897454098969 - 2²³ = 49897445710361 is a prime.

It is a super-2 number, since 2×49897454098969² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49897454098909) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 3383559054 + ... + 3383573800.

Almost surely, 2^{49897454098969} is an apocalyptic number.

49897454098969 is the 7063813-rd square number.

49897454098969 is the 3531907-th centered octagonal number.

It is an amenable number.

49897454098969 is a deficient number, since it is larger than the sum of its proper divisors (107778399228).

49897454098969 is an frugal number, since it uses more digits than its factorization.

49897454098969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30452 (or 15226 counting only the distinct ones).

The product of its (nonzero) digits is 50791587840, while the sum is 91.

The spelling of 49897454098969 in words is "forty-nine trillion, eight hundred ninety-seven billion, four hundred fifty-four million, ninety-eight thousand, nine hundred sixty-nine".