405871612825 has 12 divisors (see below), whose sum is σ = 575178057280. Its totient is φ = 278311962960.

The previous prime is 405871612799. The next prime is 405871612837. The reversal of 405871612825 is 528216178504.

It is not a de Polignac number, because 405871612825 - 2⁷ = 405871612697 is a prime.

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, 1159633005 + ... + 1159633354.

Almost surely, 2^405871612825 is an apocalyptic number.

It is an amenable number.

405871612825 is a deficient number, since it is larger than the sum of its proper divisors (169306444455).

405871612825 is a wasteful number, since it uses less digits than its factorization.

405871612825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2319266376 (or 2319266371 counting only the distinct ones).

The product of its (nonzero) digits is 1075200, while the sum is 49.

The spelling of 405871612825 in words is "four hundred five billion, eight hundred seventy-one million, six hundred twelve thousand, eight hundred twenty-five".