51240967353 has 12 divisors (see below), whose sum is σ = 74175289188. Its totient is φ = 34086540960.

The previous prime is 51240967343. The next prime is 51240967409. The reversal of 51240967353 is 35376904215.

51240967353 is a `hidden beast` number, since 51 + 240 + 9 + 6 + 7 + 353 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 9684921744 + 41556045609 = 98412^2 + 203853^2 .

It is not a de Polignac number, because 51240967353 - 2⁹ = 51240966841 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 51240967299 and 51240967308.

It is not an unprimeable number, because it can be changed into a prime (51240967343) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6170950 + ... + 6179247.

It is an arithmetic number, because the mean of its divisors is an integer number (6181274099).

Almost surely, 2^51240967353 is an apocalyptic number.

It is an amenable number.

51240967353 is a deficient number, since it is larger than the sum of its proper divisors (22934321835).

51240967353 is a wasteful number, since it uses less digits than its factorization.

51240967353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12350664 (or 12350661 counting only the distinct ones).

The product of its (nonzero) digits is 680400, while the sum is 45.

The spelling of 51240967353 in words is "fifty-one billion, two hundred forty million, nine hundred sixty-seven thousand, three hundred fifty-three".