51421878088 has 32 divisors (see below), whose sum is σ = 111996135360. Its totient is φ = 21676668480.

The previous prime is 51421878083. The next prime is 51421878121. The reversal of 51421878088 is 88087812415.

It is not an unprimeable number, because it can be changed into a prime (51421878083) 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, 7523206 + ... + 7530037.

It is an arithmetic number, because the mean of its divisors is an integer number (3499879230).

Almost surely, 2^51421878088 is an apocalyptic number.

It is an amenable number.

51421878088 is an abundant number, since it is smaller than the sum of its proper divisors (60574257272).

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

51421878088 is a wasteful number, since it uses less digits than its factorization.

51421878088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15053317 (or 15053313 counting only the distinct ones).

The product of its (nonzero) digits is 1146880, while the sum is 52.

The spelling of 51421878088 in words is "fifty-one billion, four hundred twenty-one million, eight hundred seventy-eight thousand, eighty-eight".