51102354449 has 8 divisors (see below), whose sum is σ = 52611820800. Its totient is φ = 49605415200.

The previous prime is 51102354403. The next prime is 51102354463. The reversal of 51102354449 is 94445320115.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51102354449 is a prime.

It is a super-2 number, since 2×51102354449² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51102354349) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3123497 + ... + 3139814.

It is an arithmetic number, because the mean of its divisors is an integer number (6576477600).

Almost surely, 2^51102354449 is an apocalyptic number.

It is an amenable number.

51102354449 is a deficient number, since it is larger than the sum of its proper divisors (1509466351).

51102354449 is a wasteful number, since it uses less digits than its factorization.

51102354449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6263551.

The product of its (nonzero) digits is 86400, while the sum is 38.

The spelling of 51102354449 in words is "fifty-one billion, one hundred two million, three hundred fifty-four thousand, four hundred forty-nine".