51193072723 has 32 divisors (see below), whose sum is σ = 58788737280. Its totient is φ = 44160614400.

The previous prime is 51193072717. The next prime is 51193072729. The reversal of 51193072723 is 32727039115.

It is an interprime number because it is at equal distance from previous prime (51193072717) and next prime (51193072729).

It is not a de Polignac number, because 51193072723 - 2⁵ = 51193072691 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51193072729) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 21179211 + ... + 21181627.

It is an arithmetic number, because the mean of its divisors is an integer number (1837148040).

Almost surely, 2^51193072723 is an apocalyptic number.

51193072723 is a deficient number, since it is larger than the sum of its proper divisors (7595664557).

51193072723 is a wasteful number, since it uses less digits than its factorization.

51193072723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3087.

The product of its (nonzero) digits is 79380, while the sum is 40.

The spelling of 51193072723 in words is "fifty-one billion, one hundred ninety-three million, seventy-two thousand, seven hundred twenty-three".