51051564380 has 12 divisors (see below), whose sum is σ = 107208285240. Its totient is φ = 20420625744.

The previous prime is 51051564373. The next prime is 51051564397. The reversal of 51051564380 is 8346515015.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1276289090 + ... + 1276289129.

It is an arithmetic number, because the mean of its divisors is an integer number (8934023770).

Almost surely, 2^51051564380 is an apocalyptic number.

It is an amenable number.

51051564380 is an abundant number, since it is smaller than the sum of its proper divisors (56156720860).

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

51051564380 is a wasteful number, since it uses less digits than its factorization.

51051564380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2552578228 (or 2552578226 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 38.

The spelling of 51051564380 in words is "fifty-one billion, fifty-one million, five hundred sixty-four thousand, three hundred eighty".