215973810046 has 8 divisors (see below), whose sum is σ = 341011279080. Its totient is φ = 102303383688.

The previous prime is 215973809999. The next prime is 215973810049. The reversal of 215973810046 is 640018379512.

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

It is a junction number, because it is equal to n+sod(n) for n = 215973809978 and 215973810005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215973810049) 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, 2841760621 + ... + 2841760696.

It is an arithmetic number, because the mean of its divisors is an integer number (42626409885).

It is a 1-persistent number, because it is pandigital, but 2⋅215973810046 = 431947620092 is not.

Almost surely, 2^215973810046 is an apocalyptic number.

215973810046 is a deficient number, since it is larger than the sum of its proper divisors (125037469034).

215973810046 is a wasteful number, since it uses less digits than its factorization.

215973810046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5683521338.

The product of its (nonzero) digits is 362880, while the sum is 46.

The spelling of 215973810046 in words is "two hundred fifteen billion, nine hundred seventy-three million, eight hundred ten thousand, forty-six".