51106621281302 has 8 divisors (see below), whose sum is σ = 76660476452712. Its totient is φ = 25553129130400.

The previous prime is 51106621281301. The next prime is 51106621281323. The reversal of 51106621281302 is 20318212660115.

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

It is a super-2 number, since 2×51106621281302² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51106621281301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90402899 + ... + 90966462.

It is an arithmetic number, because the mean of its divisors is an integer number (9582559556589).

Almost surely, 2^{51106621281302} is an apocalyptic number.

51106621281302 is a deficient number, since it is larger than the sum of its proper divisors (25553855171410).

51106621281302 is a wasteful number, since it uses less digits than its factorization.

51106621281302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181510254.

The product of its (nonzero) digits is 34560, while the sum is 38.

The spelling of 51106621281302 in words is "fifty-one trillion, one hundred six billion, six hundred twenty-one million, two hundred eighty-one thousand, three hundred two".