6530621430 has 32 divisors (see below), whose sum is σ = 15812203104. Its totient is φ = 1726086656.

The previous prime is 6530621411. The next prime is 6530621467. The reversal of 6530621430 is 341260356.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 959829 + ... + 966608.

It is an arithmetic number, because the mean of its divisors is an integer number (494131347).

Almost surely, 2^6530621430 is an apocalyptic number.

6530621430 is an abundant number, since it is smaller than the sum of its proper divisors (9281581674).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6530621430 is a wasteful number, since it uses less digits than its factorization.

6530621430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1926560.

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 6530621430 is about 80812.2603940763. The cubic root of 6530621430 is about 1869.1816249936.

Adding to 6530621430 its reverse (341260356), we get a palindrome (6871881786).

It can be divided in two parts, 65306 and 21430, that added together give a triangular number (86736 = T₄₁₆).

The spelling of 6530621430 in words is "six billion, five hundred thirty million, six hundred twenty-one thousand, four hundred thirty".