6490593021 has 32 divisors (see below), whose sum is σ = 10206374400. Its totient is φ = 3625922880.

The previous prime is 6490593019. The next prime is 6490593071. The reversal of 6490593021 is 1203950946.

It is not a de Polignac number, because 6490593021 - 2¹ = 6490593019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6490593071) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 116691 + ... + 163088.

It is an arithmetic number, because the mean of its divisors is an integer number (318949200).

Almost surely, 2^6490593021 is an apocalyptic number.

It is an amenable number.

6490593021 is a deficient number, since it is larger than the sum of its proper divisors (3715781379).

6490593021 is a wasteful number, since it uses less digits than its factorization.

6490593021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279849.

The product of its (nonzero) digits is 58320, while the sum is 39.

The square root of 6490593021 is about 80564.2167528488. The cubic root of 6490593021 is about 1865.3548449244.

The spelling of 6490593021 in words is "six billion, four hundred ninety million, five hundred ninety-three thousand, twenty-one".