515907427430401 has 16 divisors (see below), whose sum is σ = 520726375449280. Its totient is φ = 511111903746240.

The previous prime is 515907427430347. The next prime is 515907427430407. The reversal of 515907427430401 is 104034724709515.

It is a cyclic number.

It is not a de Polignac number, because 515907427430401 - 2²¹ = 515907425333249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (515907427430407) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 101257135 + ... + 106230043.

It is an arithmetic number, because the mean of its divisors is an integer number (32545398465580).

Almost surely, 2^{515907427430401} is an apocalyptic number.

It is an amenable number.

515907427430401 is a deficient number, since it is larger than the sum of its proper divisors (4818948018879).

515907427430401 is a wasteful number, since it uses less digits than its factorization.

515907427430401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4975264.

The product of its (nonzero) digits is 4233600, while the sum is 52.

The spelling of 515907427430401 in words is "five hundred fifteen trillion, nine hundred seven billion, four hundred twenty-seven million, four hundred thirty thousand, four hundred one".