51122970784146 has 16 divisors (see below), whose sum is σ = 108260408719584. Its totient is φ = 16038579069504.

The previous prime is 51122970784111. The next prime is 51122970784147. The reversal of 51122970784146 is 64148707922115.

It is a super-2 number, since 2×51122970784146² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51122970784147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 250602797860 + ... + 250602798063.

It is an arithmetic number, because the mean of its divisors is an integer number (6766275544974).

Almost surely, 2^{51122970784146} is an apocalyptic number.

51122970784146 is an abundant number, since it is smaller than the sum of its proper divisors (57137437935438).

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

51122970784146 is a wasteful number, since it uses less digits than its factorization.

51122970784146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 501205595945.

The product of its (nonzero) digits is 6773760, while the sum is 57.

The spelling of 51122970784146 in words is "fifty-one trillion, one hundred twenty-two billion, nine hundred seventy million, seven hundred eighty-four thousand, one hundred forty-six".