6521000342 has 32 divisors (see below), whose sum is σ = 10282180608. Its totient is φ = 3095791776.

The previous prime is 6521000341. The next prime is 6521000377. The reversal of 6521000342 is 2430001256.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6521000341) 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, 4748768 + ... + 4750140.

It is an arithmetic number, because the mean of its divisors is an integer number (321318144).

Almost surely, 2^6521000342 is an apocalyptic number.

6521000342 is a deficient number, since it is larger than the sum of its proper divisors (3761180266).

6521000342 is a wasteful number, since it uses less digits than its factorization.

6521000342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2084.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 6521000342 is about 80752.7110504657. The cubic root of 6521000342 is about 1868.2632642311.

Adding to 6521000342 its reverse (2430001256), we get a palindrome (8951001598).

The spelling of 6521000342 in words is "six billion, five hundred twenty-one million, three hundred forty-two", and thus it is an aban number.