6400102261 has 8 divisors (see below), whose sum is σ = 7354815104. Its totient is φ = 5455492560.

The previous prime is 6400102193. The next prime is 6400102279. The reversal of 6400102261 is 1622010046.

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

It is not a de Polignac number, because 6400102261 - 2⁹ = 6400101749 is a prime.

It is a super-2 number, since 2×6400102261² = 81922617902514624242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6400102561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2524425 + ... + 2526958.

It is an arithmetic number, because the mean of its divisors is an integer number (919351888).

Almost surely, 2^6400102261 is an apocalyptic number.

It is an amenable number.

6400102261 is a deficient number, since it is larger than the sum of its proper divisors (954712843).

6400102261 is a wasteful number, since it uses less digits than its factorization.

6400102261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5051571.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 6400102261 is about 80000.6391286970. The cubic root of 6400102261 is about 1856.6454220074.

The spelling of 6400102261 in words is "six billion, four hundred million, one hundred two thousand, two hundred sixty-one".