71218106425 has 24 divisors (see below), whose sum is σ = 89707383360. Its totient is φ = 56078356800.

The previous prime is 71218106411. The next prime is 71218106483. The reversal of 71218106425 is 52460181217.

It is not a de Polignac number, because 71218106425 - 2²⁵ = 71184551993 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 494380 + ... + 621970.

It is an arithmetic number, because the mean of its divisors is an integer number (3737807640).

Almost surely, 2^71218106425 is an apocalyptic number.

It is an amenable number.

71218106425 is a deficient number, since it is larger than the sum of its proper divisors (18489276935).

71218106425 is a wasteful number, since it uses less digits than its factorization.

71218106425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127953 (or 127948 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 37.

The spelling of 71218106425 in words is "seventy-one billion, two hundred eighteen million, one hundred six thousand, four hundred twenty-five".