51205210601226 has 16 divisors (see below), whose sum is σ = 111720459493728. Its totient is φ = 15516730485200.

The previous prime is 51205210601179. The next prime is 51205210601231. The reversal of 51205210601226 is 62210601250215.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 387918262065 + ... + 387918262196.

It is an arithmetic number, because the mean of its divisors is an integer number (6982528718358).

Almost surely, 2^{51205210601226} is an apocalyptic number.

51205210601226 is an abundant number, since it is smaller than the sum of its proper divisors (60515248892502).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51205210601226 is a wasteful number, since it uses less digits than its factorization.

51205210601226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 775836524277.

The product of its (nonzero) digits is 14400, while the sum is 33.

The spelling of 51205210601226 in words is "fifty-one trillion, two hundred five billion, two hundred ten million, six hundred one thousand, two hundred twenty-six".