6421265140530 has 32 divisors (see below), whose sum is σ = 15411651861888. Its totient is φ = 1712268979200.

The previous prime is 6421265140529. The next prime is 6421265140559. The reversal of 6421265140530 is 350415621246.

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, 3508591 + ... + 5015250.

It is an arithmetic number, because the mean of its divisors is an integer number (481614120684).

Almost surely, 2^{6421265140530} is an apocalyptic number.

6421265140530 is an abundant number, since it is smaller than the sum of its proper divisors (8990386721358).

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

6421265140530 is a wasteful number, since it uses less digits than its factorization.

6421265140530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8548962.

The product of its (nonzero) digits is 172800, while the sum is 39.

The spelling of 6421265140530 in words is "six trillion, four hundred twenty-one billion, two hundred sixty-five million, one hundred forty thousand, five hundred thirty".