51418822603481 has 8 divisors (see below), whose sum is σ = 51491061378240. Its totient is φ = 51346591018992.

The previous prime is 51418822603459. The next prime is 51418822603507. The reversal of 51418822603481 is 18430622881415.

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

It is a cyclic number.

It is not a de Polignac number, because 51418822603481 - 2⁶ = 51418822603417 is a prime.

It is a super-2 number, since 2×51418822603481² (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 (51418822603081) 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, 12595691 + ... + 16170623.

It is an arithmetic number, because the mean of its divisors is an integer number (6436382672280).

Almost surely, 2^{51418822603481} is an apocalyptic number.

It is an amenable number.

51418822603481 is a deficient number, since it is larger than the sum of its proper divisors (72238774759).

51418822603481 is a wasteful number, since it uses less digits than its factorization.

51418822603481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3595135.

The product of its (nonzero) digits is 2949120, while the sum is 53.

The spelling of 51418822603481 in words is "fifty-one trillion, four hundred eighteen billion, eight hundred twenty-two million, six hundred three thousand, four hundred eighty-one".