51325923278 has 24 divisors (see below), whose sum is σ = 89581090104. Its totient is φ = 21991275600.

The previous prime is 51325923241. The next prime is 51325923281. The reversal of 51325923278 is 87232952315.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 336908 + ... + 464928.

It is an arithmetic number, because the mean of its divisors is an integer number (3732545421).

Almost surely, 2^51325923278 is an apocalyptic number.

51325923278 is a deficient number, since it is larger than the sum of its proper divisors (38255166826).

51325923278 is a wasteful number, since it uses less digits than its factorization.

51325923278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132128 (or 132121 counting only the distinct ones).

The product of its digits is 907200, while the sum is 47.

The spelling of 51325923278 in words is "fifty-one billion, three hundred twenty-five million, nine hundred twenty-three thousand, two hundred seventy-eight".