215192810401 has 4 divisors (see below), whose sum is σ = 216481390272. Its totient is φ = 213904230532.

The previous prime is 215192810389. The next prime is 215192810419. The reversal of 215192810401 is 104018291512.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 215192810401 - 2⁵ = 215192810369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (215192810491) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 644289685 + ... + 644290018.

It is an arithmetic number, because the mean of its divisors is an integer number (54120347568).

Almost surely, 2^215192810401 is an apocalyptic number.

It is an amenable number.

215192810401 is a deficient number, since it is larger than the sum of its proper divisors (1288579871).

215192810401 is a wasteful number, since it uses less digits than its factorization.

215192810401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1288579870.

The product of its (nonzero) digits is 5760, while the sum is 34.

The spelling of 215192810401 in words is "two hundred fifteen billion, one hundred ninety-two million, eight hundred ten thousand, four hundred one".