51415202154 has 16 divisors (see below), whose sum is σ = 103446157248. Its totient is φ = 17035775232.

The previous prime is 51415202141. The next prime is 51415202171. The reversal of 51415202154 is 45120251415.

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, 25655287 + ... + 25657290.

It is an arithmetic number, because the mean of its divisors is an integer number (6465384828).

Almost surely, 2^51415202154 is an apocalyptic number.

51415202154 is an abundant number, since it is smaller than the sum of its proper divisors (52030955094).

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

51415202154 is a wasteful number, since it uses less digits than its factorization.

51415202154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51312749.

The product of its (nonzero) digits is 8000, while the sum is 30.

Adding to 51415202154 its reverse (45120251415), we get a palindrome (96535453569).

The spelling of 51415202154 in words is "fifty-one billion, four hundred fifteen million, two hundred two thousand, one hundred fifty-four".