51870385022 has 24 divisors (see below), whose sum is σ = 79875068328. Its totient is φ = 25262809280.

The previous prime is 51870385009. The next prime is 51870385079. The reversal of 51870385022 is 22058307815.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (41).

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, 2183573 + ... + 2207199.

It is an arithmetic number, because the mean of its divisors is an integer number (3328127847).

Almost surely, 2^51870385022 is an apocalyptic number.

51870385022 is a deficient number, since it is larger than the sum of its proper divisors (28004683306).

51870385022 is a wasteful number, since it uses less digits than its factorization.

51870385022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24364 (or 24323 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 41.

The spelling of 51870385022 in words is "fifty-one billion, eight hundred seventy million, three hundred eighty-five thousand, twenty-two".