51267347800 has 48 divisors (see below), whose sum is σ = 120106542600. Its totient is φ = 20350387200.

The previous prime is 51267347779. The next prime is 51267347827. The reversal of 51267347800 is 874376215.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 952185 + ... + 1004584.

Almost surely, 2^51267347800 is an apocalyptic number.

51267347800 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

51267347800 is an abundant number, since it is smaller than the sum of its proper divisors (68839194800).

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

51267347800 is a wasteful number, since it uses less digits than its factorization.

51267347800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1956916 (or 1956907 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 43.

The spelling of 51267347800 in words is "fifty-one billion, two hundred sixty-seven million, three hundred forty-seven thousand, eight hundred".