51348821370 has 96 divisors (see below), whose sum is σ = 156390077376. Its totient is φ = 10669881600.

The previous prime is 51348821323. The next prime is 51348821387. The reversal of 51348821370 is 7312884315.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1571611 + ... + 1603950.

It is an arithmetic number, because the mean of its divisors is an integer number (1629063306).

Almost surely, 2^51348821370 is an apocalyptic number.

51348821370 is an abundant number, since it is smaller than the sum of its proper divisors (105041256006).

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

51348821370 is a wasteful number, since it uses less digits than its factorization.

51348821370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3175596 (or 3175589 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 42.

The spelling of 51348821370 in words is "fifty-one billion, three hundred forty-eight million, eight hundred twenty-one thousand, three hundred seventy".