51782058155828 has 96 divisors (see below), whose sum is σ = 122373025931520. Its totient is φ = 18515270845440.

The previous prime is 51782058155809. The next prime is 51782058155879. The reversal of 51782058155828 is 82855185028715.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36684713 + ... + 38070096.

It is an arithmetic number, because the mean of its divisors is an integer number (1274719020120).

Almost surely, 2^{51782058155828} is an apocalyptic number.

It is an amenable number.

51782058155828 is an abundant number, since it is smaller than the sum of its proper divisors (70590967775692).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51782058155828 is a wasteful number, since it uses less digits than its factorization.

51782058155828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74755017 (or 74755015 counting only the distinct ones).

The product of its (nonzero) digits is 71680000, while the sum is 65.

The spelling of 51782058155828 in words is "fifty-one trillion, seven hundred eighty-two billion, fifty-eight million, one hundred fifty-five thousand, eight hundred twenty-eight".