51206194910 has 32 divisors (see below), whose sum is σ = 104485520160. Its totient is φ = 17911801728.

The previous prime is 51206194901. The next prime is 51206194933. The reversal of 51206194910 is 1949160215.

51206194910 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10363157 + ... + 10368096.

It is an arithmetic number, because the mean of its divisors is an integer number (3265172505).

Almost surely, 2^51206194910 is an apocalyptic number.

51206194910 is an abundant number, since it is smaller than the sum of its proper divisors (53279325250).

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

51206194910 is a wasteful number, since it uses less digits than its factorization.

51206194910 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20731292.

The product of its (nonzero) digits is 19440, while the sum is 38.

The spelling of 51206194910 in words is "fifty-one billion, two hundred six million, one hundred ninety-four thousand, nine hundred ten".