51023388786 has 16 divisors (see below), whose sum is σ = 102070710624. Its totient is φ = 17003807424.

The previous prime is 51023388781. The next prime is 51023388803. The reversal of 51023388786 is 68788332015.

It is not an unprimeable number, because it can be changed into a prime (51023388781) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 969436 + ... + 1020711.

It is an arithmetic number, because the mean of its divisors is an integer number (6379419414).

Almost surely, 2^51023388786 is an apocalyptic number.

51023388786 is an abundant number, since it is smaller than the sum of its proper divisors (51047321838).

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

51023388786 is a wasteful number, since it uses less digits than its factorization.

51023388786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1994425.

The product of its (nonzero) digits is 1935360, while the sum is 51.

The spelling of 51023388786 in words is "fifty-one billion, twenty-three million, three hundred eighty-eight thousand, seven hundred eighty-six".