51340251112465 has 12 divisors (see below), whose sum is σ = 71666799512436. Its totient is φ = 35204743619808.

The previous prime is 51340251112373. The next prime is 51340251112639. The reversal of 51340251112465 is 56421115204315.

It can be written as a sum of positive squares in 2 ways, for example, as 20242809638401 + 31097441474064 = 4499201^2 + 5576508^2 .

It is a de Polignac number, because none of the positive numbers 2^k-51340251112465 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 104776022434 + ... + 104776022923.

It is an arithmetic number, because the mean of its divisors is an integer number (5972233292703).

Almost surely, 2^{51340251112465} is an apocalyptic number.

It is an amenable number.

51340251112465 is a deficient number, since it is larger than the sum of its proper divisors (20326548399971).

51340251112465 is a wasteful number, since it uses less digits than its factorization.

51340251112465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209552045376 (or 209552045369 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 40.

The spelling of 51340251112465 in words is "fifty-one trillion, three hundred forty billion, two hundred fifty-one million, one hundred twelve thousand, four hundred sixty-five".