51065140004 has 24 divisors (see below), whose sum is σ = 90662374656. Its totient is φ = 25161920000.

The previous prime is 51065140001. The next prime is 51065140079. The reversal of 51065140004 is 40004156015.

51065140004 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×51065140004² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51065140001) 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, 629444 + ... + 705924.

It is an arithmetic number, because the mean of its divisors is an integer number (3777598944).

Almost surely, 2^51065140004 is an apocalyptic number.

It is an amenable number.

51065140004 is a deficient number, since it is larger than the sum of its proper divisors (39597234652).

51065140004 is a wasteful number, since it uses less digits than its factorization.

51065140004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78907 (or 78905 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

Adding to 51065140004 its reverse (40004156015), we get a palindrome (91069296019).

The spelling of 51065140004 in words is "fifty-one billion, sixty-five million, one hundred forty thousand, four".