51454108208 has 20 divisors (see below), whose sum is σ = 99712112808. Its totient is φ = 25721950080.

The previous prime is 51454108193. The next prime is 51454108213. The reversal of 51454108208 is 80280145415.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 235166 + ... + 397757.

Almost surely, 2^51454108208 is an apocalyptic number.

It is an amenable number.

51454108208 is a deficient number, since it is larger than the sum of its proper divisors (48258004600).

51454108208 is a wasteful number, since it uses less digits than its factorization.

51454108208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 638012 (or 638006 counting only the distinct ones).

The product of its (nonzero) digits is 51200, while the sum is 38.

The spelling of 51454108208 in words is "fifty-one billion, four hundred fifty-four million, one hundred eight thousand, two hundred eight".