51352511231782 has 4 divisors (see below), whose sum is σ = 77028766847676. Its totient is φ = 25676255615890.

The previous prime is 51352511231713. The next prime is 51352511231843. The reversal of 51352511231782 is 28713211525315.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12838127807944 + ... + 12838127807947.

It is an arithmetic number, because the mean of its divisors is an integer number (19257191711919).

Almost surely, 2^{51352511231782} is an apocalyptic number.

51352511231782 is a deficient number, since it is larger than the sum of its proper divisors (25676255615894).

51352511231782 is a wasteful number, since it uses less digits than its factorization.

51352511231782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25676255615893.

The product of its digits is 504000, while the sum is 46.

The spelling of 51352511231782 in words is "fifty-one trillion, three hundred fifty-two billion, five hundred eleven million, two hundred thirty-one thousand, seven hundred eighty-two".