51461361570 has 32 divisors (see below), whose sum is σ = 126845304768. Its totient is φ = 13352136768.

The previous prime is 51461361559. The next prime is 51461361583. The reversal of 51461361570 is 7516316415.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23179684 + ... + 23181903.

It is an arithmetic number, because the mean of its divisors is an integer number (3963915774).

Almost surely, 2^51461361570 is an apocalyptic number.

51461361570 is an abundant number, since it is smaller than the sum of its proper divisors (75383943198).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51461361570 is a wasteful number, since it uses less digits than its factorization.

51461361570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46361634.

The product of its (nonzero) digits is 75600, while the sum is 39.

Adding to 51461361570 its reverse (7516316415), we get a palindrome (58977677985).

The spelling of 51461361570 in words is "fifty-one billion, four hundred sixty-one million, three hundred sixty-one thousand, five hundred seventy".