6406475100 has 72 divisors (see below), whose sum is σ = 19511667840. Its totient is φ = 1618476480.

The previous prime is 6406475083. The next prime is 6406475167. The reversal of 6406475100 is 15746046.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 556272 + ... + 567671.

Almost surely, 2^6406475100 is an apocalyptic number.

6406475100 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6406475100 is an abundant number, since it is smaller than the sum of its proper divisors (13105192740).

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

6406475100 is a wasteful number, since it uses less digits than its factorization.

6406475100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1123979 (or 1123972 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 6406475100 is about 80040.4591441104. The cubic root of 6406475100 is about 1857.2614630647.

The spelling of 6406475100 in words is "six billion, four hundred six million, four hundred seventy-five thousand, one hundred".