6404167623 has 16 divisors (see below), whose sum is σ = 9759859200. Its totient is φ = 3659101536.

The previous prime is 6404167621. The next prime is 6404167639. The reversal of 6404167623 is 3267614046.

It is a happy number.

It is not a de Polignac number, because 6404167623 - 2¹ = 6404167621 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6404167621) 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, 311053 + ... + 331001.

It is an arithmetic number, because the mean of its divisors is an integer number (609991200).

Almost surely, 2^6404167623 is an apocalyptic number.

6404167623 is a deficient number, since it is larger than the sum of its proper divisors (3355691577).

6404167623 is a wasteful number, since it uses less digits than its factorization.

6404167623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35246.

The product of its (nonzero) digits is 145152, while the sum is 39.

The square root of 6404167623 is about 80026.0434046317. The cubic root of 6404167623 is about 1857.0384541729.

The spelling of 6404167623 in words is "six billion, four hundred four million, one hundred sixty-seven thousand, six hundred twenty-three".