6435406061 has 16 divisors (see below), whose sum is σ = 7484244480. Its totient is φ = 5419062960.

The previous prime is 6435406009. The next prime is 6435406063. The reversal of 6435406061 is 1606045346.

It is a cyclic number.

It is not a de Polignac number, because 6435406061 - 2⁶ = 6435405997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6435406063) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 783506 + ... + 791676.

It is an arithmetic number, because the mean of its divisors is an integer number (467765280).

Almost surely, 2^6435406061 is an apocalyptic number.

It is an amenable number.

6435406061 is a deficient number, since it is larger than the sum of its proper divisors (1048838419).

6435406061 is a wasteful number, since it uses less digits than its factorization.

6435406061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10144.

The product of its (nonzero) digits is 51840, while the sum is 35.

The square root of 6435406061 is about 80220.9826728643. The cubic root of 6435406061 is about 1860.0529970061.

The spelling of 6435406061 in words is "six billion, four hundred thirty-five million, four hundred six thousand, sixty-one".