51100352517609 has 12 divisors (see below), whose sum is σ = 73812544000000. Its totient is φ = 34066475356824.

The previous prime is 51100352517593. The next prime is 51100352517637. The reversal of 51100352517609 is 90671525300115.

51100352517609 is a `hidden beast` number, since 5 + 1 + 1 + 0 + 0 + 3 + 5 + 25 + 17 + 609 = 666.

It is not a de Polignac number, because 51100352517609 - 2⁴ = 51100352517593 is a prime.

It is a super-2 number, since 2×51100352517609² (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 (51100352517209) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34766809 + ... + 36206790.

Almost surely, 2^{51100352517609} is an apocalyptic number.

It is an amenable number.

51100352517609 is a deficient number, since it is larger than the sum of its proper divisors (22712191482391).

51100352517609 is a wasteful number, since it uses less digits than its factorization.

51100352517609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71053604 (or 71053601 counting only the distinct ones).

The product of its (nonzero) digits is 283500, while the sum is 45.

The spelling of 51100352517609 in words is "fifty-one trillion, one hundred billion, three hundred fifty-two million, five hundred seventeen thousand, six hundred nine".