51371406246 has 16 divisors (see below), whose sum is σ = 107209891584. Its totient is φ = 16379288904.

The previous prime is 51371406241. The next prime is 51371406271. The reversal of 51371406246 is 64260417315.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51371406241) 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, 186128146 + ... + 186128421.

It is an arithmetic number, because the mean of its divisors is an integer number (6700618224).

Almost surely, 2^51371406246 is an apocalyptic number.

51371406246 is an abundant number, since it is smaller than the sum of its proper divisors (55838485338).

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

51371406246 is a wasteful number, since it uses less digits than its factorization.

51371406246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372256595.

The product of its (nonzero) digits is 120960, while the sum is 39.

The spelling of 51371406246 in words is "fifty-one billion, three hundred seventy-one million, four hundred six thousand, two hundred forty-six".