51849000390 has 64 divisors (see below), whose sum is σ = 135875480832. Its totient is φ = 12557846400.

The previous prime is 51849000377. The next prime is 51849000407. The reversal of 51849000390 is 9300094815.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 288024 + ... + 432036.

It is an arithmetic number, because the mean of its divisors is an integer number (2123054388).

Almost surely, 2^51849000390 is an apocalyptic number.

51849000390 is an abundant number, since it is smaller than the sum of its proper divisors (84026480442).

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

51849000390 is a wasteful number, since it uses less digits than its factorization.

51849000390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145125.

The product of its (nonzero) digits is 38880, while the sum is 39.

The spelling of 51849000390 in words is "fifty-one billion, eight hundred forty-nine million, three hundred ninety", and thus it is an aban number.