216867425389450 has 96 divisors (see below), whose sum is σ = 465954078994560. Its totient is φ = 74217955123200.

The previous prime is 216867425389441. The next prime is 216867425389457. The reversal of 216867425389450 is 54983524768612.

216867425389450 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×216867425389450³ (a number of 44 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 216867425389450.

It is not an unprimeable number, because it can be changed into a prime (216867425389457) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 173220811 + ... + 174468289.

It is an arithmetic number, because the mean of its divisors is an integer number (4853688322860).

It is a 1-persistent number, because it is pandigital, but 2⋅216867425389450 = 433734850778900 is not.

Almost surely, 2^{216867425389450} is an apocalyptic number.

216867425389450 is an abundant number, since it is smaller than the sum of its proper divisors (249086653605110).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

216867425389450 is a wasteful number, since it uses less digits than its factorization.

216867425389450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1266112 (or 1266107 counting only the distinct ones).

The product of its (nonzero) digits is 696729600, while the sum is 70.

The spelling of 216867425389450 in words is "two hundred sixteen trillion, eight hundred sixty-seven billion, four hundred twenty-five million, three hundred eighty-nine thousand, four hundred fifty".