6506371623 has 4 divisors (see below), whose sum is σ = 8675162168. Its totient is φ = 4337581080.

The previous prime is 6506371601. The next prime is 6506371639. The reversal of 6506371623 is 3261736056.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 6506371623 - 2⁹ = 6506371111 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 (6506371673) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1084395268 + ... + 1084395273.

It is an arithmetic number, because the mean of its divisors is an integer number (2168790542).

Almost surely, 2^6506371623 is an apocalyptic number.

6506371623 is a deficient number, since it is larger than the sum of its proper divisors (2168790545).

6506371623 is a wasteful number, since it uses less digits than its factorization.

6506371623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2168790544.

The product of its (nonzero) digits is 136080, while the sum is 39.

The square root of 6506371623 is about 80662.0829324411. The cubic root of 6506371623 is about 1866.8651780842.

The spelling of 6506371623 in words is "six billion, five hundred six million, three hundred seventy-one thousand, six hundred twenty-three".