51961471130 has 32 divisors (see below), whose sum is σ = 98721711360. Its totient is φ = 19636983360.

The previous prime is 51961471129. The next prime is 51961471141. The reversal of 51961471130 is 3117416915.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 302861 + ... + 442320.

It is an arithmetic number, because the mean of its divisors is an integer number (3085053480).

Almost surely, 2^51961471130 is an apocalyptic number.

51961471130 is a deficient number, since it is larger than the sum of its proper divisors (46760240230).

51961471130 is a wasteful number, since it uses less digits than its factorization.

51961471130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 745574.

The product of its (nonzero) digits is 22680, while the sum is 38.

The spelling of 51961471130 in words is "fifty-one billion, nine hundred sixty-one million, four hundred seventy-one thousand, one hundred thirty".