51242354270 has 32 divisors (see below), whose sum is σ = 95484614400. Its totient is φ = 19778872320.

The previous prime is 51242354263. The next prime is 51242354291. The reversal of 51242354270 is 7245324215.

It is a super-2 number, since 2×51242354270² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 51242354270.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 128627 + ... + 345006.

It is an arithmetic number, because the mean of its divisors is an integer number (2983894200).

Almost surely, 2^51242354270 is an apocalyptic number.

51242354270 is a deficient number, since it is larger than the sum of its proper divisors (44242260130).

51242354270 is a wasteful number, since it uses less digits than its factorization.

51242354270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474020.

The product of its (nonzero) digits is 67200, while the sum is 35.

Adding to 51242354270 its reverse (7245324215), we get a palindrome (58487678485).

The spelling of 51242354270 in words is "fifty-one billion, two hundred forty-two million, three hundred fifty-four thousand, two hundred seventy".