6390605450 has 24 divisors (see below), whose sum is σ = 11894988672. Its totient is φ = 2554422320.

The previous prime is 6390605447. The next prime is 6390605461. The reversal of 6390605450 is 545060936.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26567 + ... + 116133.

It is an arithmetic number, because the mean of its divisors is an integer number (495624528).

Almost surely, 2^6390605450 is an apocalyptic number.

6390605450 is a deficient number, since it is larger than the sum of its proper divisors (5504383222).

6390605450 is a wasteful number, since it uses less digits than its factorization.

6390605450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91006 (or 91001 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 38.

The square root of 6390605450 is about 79941.2624994127. The cubic root of 6390605450 is about 1855.7266377782.

The spelling of 6390605450 in words is "six billion, three hundred ninety million, six hundred five thousand, four hundred fifty".