51840235372 has 12 divisors (see below), whose sum is σ = 90794599056. Its totient is φ = 25898921360.

The previous prime is 51840235361. The next prime is 51840235393. The reversal of 51840235372 is 27353204815.

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 3 ways as a sum of consecutive naturals, for example, 5293579 + ... + 5303362.

It is an arithmetic number, because the mean of its divisors is an integer number (7566216588).

Almost surely, 2^51840235372 is an apocalyptic number.

It is an amenable number.

51840235372 is a deficient number, since it is larger than the sum of its proper divisors (38954363684).

51840235372 is a wasteful number, since it uses less digits than its factorization.

51840235372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10598168 (or 10598166 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 40.

The spelling of 51840235372 in words is "fifty-one billion, eight hundred forty million, two hundred thirty-five thousand, three hundred seventy-two".