6472121406 has 16 divisors (see below), whose sum is σ = 13021755264. Its totient is φ = 2144455064.

The previous prime is 6472121401. The next prime is 6472121423. The reversal of 6472121406 is 6041212746.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6472121401) 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, 3228600 + ... + 3230603.

It is an arithmetic number, because the mean of its divisors is an integer number (813859704).

Almost surely, 2^6472121406 is an apocalyptic number.

6472121406 is an abundant number, since it is smaller than the sum of its proper divisors (6549633858).

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

6472121406 is a wasteful number, since it uses less digits than its factorization.

6472121406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6459375.

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 6472121406 is about 80449.4959959352. The cubic root of 6472121406 is about 1863.5836223523.

The spelling of 6472121406 in words is "six billion, four hundred seventy-two million, one hundred twenty-one thousand, four hundred six".