51061463325465 has 32 divisors (see below), whose sum is σ = 81919627385472. Its totient is φ = 27159061440000.

The previous prime is 51061463325463. The next prime is 51061463325497. The reversal of 51061463325465 is 56452336416015.

It is a happy number.

It is not a de Polignac number, because 51061463325465 - 2¹ = 51061463325463 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51061463325463) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17671765 + ... + 20357165.

It is an arithmetic number, because the mean of its divisors is an integer number (2559988355796).

Almost surely, 2^{51061463325465} is an apocalyptic number.

It is an amenable number.

51061463325465 is a deficient number, since it is larger than the sum of its proper divisors (30858164060007).

51061463325465 is a wasteful number, since it uses less digits than its factorization.

51061463325465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2688841.

The product of its (nonzero) digits is 7776000, while the sum is 51.

The spelling of 51061463325465 in words is "fifty-one trillion, sixty-one billion, four hundred sixty-three million, three hundred twenty-five thousand, four hundred sixty-five".