51111044144852 has 12 divisors (see below), whose sum is σ = 89979922028640. Its totient is φ = 25402494993816.

The previous prime is 51111044144777. The next prime is 51111044144861. The reversal of 51111044144852 is 25844144011115.

It is a super-2 number, since 2×51111044144852² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38256768902 + ... + 38256770237.

It is an arithmetic number, because the mean of its divisors is an integer number (7498326835720).

Almost surely, 2^{51111044144852} is an apocalyptic number.

It is an amenable number.

51111044144852 is a deficient number, since it is larger than the sum of its proper divisors (38868877883788).

51111044144852 is a wasteful number, since it uses less digits than its factorization.

51111044144852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76513539310 (or 76513539308 counting only the distinct ones).

The product of its (nonzero) digits is 102400, while the sum is 41.

Adding to 51111044144852 its reverse (25844144011115), we get a palindrome (76955188155967).

The spelling of 51111044144852 in words is "fifty-one trillion, one hundred eleven billion, forty-four million, one hundred forty-four thousand, eight hundred fifty-two".