407406425521 has 8 divisors (see below), whose sum is σ = 414095363264. Its totient is φ = 400717815120.

The previous prime is 407406425507. The next prime is 407406425563. The reversal of 407406425521 is 125524604704.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 407406425521 - 2¹⁵ = 407406392753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (407406420521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4725220 + ... + 4810666.

It is an arithmetic number, because the mean of its divisors is an integer number (51761920408).

Almost surely, 2^407406425521 is an apocalyptic number.

It is an amenable number.

407406425521 is a deficient number, since it is larger than the sum of its proper divisors (6688937743).

407406425521 is an equidigital number, since it uses as much as digits as its factorization.

407406425521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163671.

The product of its (nonzero) digits is 268800, while the sum is 40.

The spelling of 407406425521 in words is "four hundred seven billion, four hundred six million, four hundred twenty-five thousand, five hundred twenty-one".