51202397309459 has 16 divisors (see below), whose sum is σ = 58746910362624. Its totient is φ = 44196170959200.

The previous prime is 51202397309449. The next prime is 51202397309471. The reversal of 51202397309459 is 95490379320215.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51202397309459 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51202397309398 and 51202397309407.

It is not an unprimeable number, because it can be changed into a prime (51202397309419) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1416525869 + ... + 1416562014.

It is an arithmetic number, because the mean of its divisors is an integer number (3671681897664).

Almost surely, 2^{51202397309459} is an apocalyptic number.

51202397309459 is a deficient number, since it is larger than the sum of its proper divisors (7544513053165).

51202397309459 is a wasteful number, since it uses less digits than its factorization.

51202397309459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2833087978.

The product of its (nonzero) digits is 18370800, while the sum is 59.

The spelling of 51202397309459 in words is "fifty-one trillion, two hundred two billion, three hundred ninety-seven million, three hundred nine thousand, four hundred fifty-nine".