49797136989 has 20 divisors (see below), whose sum is σ = 75649141920. Its totient is φ = 32635408680.

The previous prime is 49797136973. The next prime is 49797137009. The reversal of 49797136989 is 98963179794.

49797136989 is a `hidden beast` number, since 497 + 9 + 71 + 3 + 69 + 8 + 9 = 666.

It is not a de Polignac number, because 49797136989 - 2⁴ = 49797136973 is a prime.

It is a super-3 number, since 3×49797136989³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49797136289) 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, 5205217 + ... + 5214774.

It is an arithmetic number, because the mean of its divisors is an integer number (3782457096).

Almost surely, 2^49797136989 is an apocalyptic number.

It is an amenable number.

49797136989 is a deficient number, since it is larger than the sum of its proper divisors (25852004931).

49797136989 is a wasteful number, since it uses less digits than its factorization.

49797136989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10420062 (or 10420053 counting only the distinct ones).

The product of its digits is 185177664, while the sum is 72.

The spelling of 49797136989 in words is "forty-nine billion, seven hundred ninety-seven million, one hundred thirty-six thousand, nine hundred eighty-nine".