51926206969 has 24 divisors (see below), whose sum is σ = 66189032000. Its totient is φ = 39667707072.

The previous prime is 51926206949. The next prime is 51926206993. The reversal of 51926206969 is 96960262915.

It is not a de Polignac number, because 51926206969 - 2⁹ = 51926206457 is a prime.

It is a super-2 number, since 2×51926206969² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51926206949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 262719 + ... + 415780.

Almost surely, 2^51926206969 is an apocalyptic number.

It is an amenable number.

51926206969 is a deficient number, since it is larger than the sum of its proper divisors (14262825031).

51926206969 is a wasteful number, since it uses less digits than its factorization.

51926206969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 678577 (or 678548 counting only the distinct ones).

The product of its (nonzero) digits is 3149280, while the sum is 55.

The spelling of 51926206969 in words is "fifty-one billion, nine hundred twenty-six million, two hundred six thousand, nine hundred sixty-nine".