51140150653240 has 128 divisors (see below), whose sum is σ = 128651846400000. Its totient is φ = 18133758489600.

The previous prime is 51140150653219. The next prime is 51140150653259. The reversal of 51140150653240 is 4235605104115.

51140150653240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 51140150653240.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35352901 + ... + 36771019.

It is an arithmetic number, because the mean of its divisors is an integer number (1005092550000).

Almost surely, 2^{51140150653240} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51140150653240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64325923200000).

51140150653240 is an abundant number, since it is smaller than the sum of its proper divisors (77511695746760).

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

51140150653240 is a wasteful number, since it uses less digits than its factorization.

51140150653240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1420181 (or 1420177 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 37.

Adding to 51140150653240 its reverse (4235605104115), we get a palindrome (55375755757355).

The spelling of 51140150653240 in words is "fifty-one trillion, one hundred forty billion, one hundred fifty million, six hundred fifty-three thousand, two hundred forty".