51345011355240 has 128 divisors (see below), whose sum is σ = 154217914306560. Its totient is φ = 13675756034304.

The previous prime is 51345011355181. The next prime is 51345011355241. The reversal of 51345011355240 is 4255311054315.

51345011355240 is digitally balanced in base 2 and base 5, because in such bases it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (51345011355241) by changing a digit.

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, 373667589 + ... + 373804971.

It is an arithmetic number, because the mean of its divisors is an integer number (1204827455520).

Almost surely, 2^{51345011355240} is an apocalyptic number.

It is an amenable number.

51345011355240 is an abundant number, since it is smaller than the sum of its proper divisors (102872902951320).

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

51345011355240 is a wasteful number, since it uses less digits than its factorization.

51345011355240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141071 (or 141067 counting only the distinct ones).

The product of its (nonzero) digits is 180000, while the sum is 39.

The spelling of 51345011355240 in words is "fifty-one trillion, three hundred forty-five billion, eleven million, three hundred fifty-five thousand, two hundred forty".