51398316386 has 8 divisors (see below), whose sum is σ = 79584489984. Its totient is φ = 24870153060.

The previous prime is 51398316377. The next prime is 51398316467. The reversal of 51398316386 is 68361389315.

51398316386 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×51398316386³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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, 414502490 + ... + 414502613.

It is an arithmetic number, because the mean of its divisors is an integer number (9948061248).

Almost surely, 2^51398316386 is an apocalyptic number.

51398316386 is a deficient number, since it is larger than the sum of its proper divisors (28186173598).

51398316386 is a wasteful number, since it uses less digits than its factorization.

51398316386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 829005136.

The product of its digits is 2799360, while the sum is 53.

The spelling of 51398316386 in words is "fifty-one billion, three hundred ninety-eight million, three hundred sixteen thousand, three hundred eighty-six".