6453125641 has 4 divisors (see below), whose sum is σ = 6453334800. Its totient is φ = 6452916484.

The previous prime is 6453125639. The next prime is 6453125647. The reversal of 6453125641 is 1465213546.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6453125641 - 2¹ = 6453125639 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6453125641.

It is not an unprimeable number, because it can be changed into a prime (6453125647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48151 + ... + 123388.

It is an arithmetic number, because the mean of its divisors is an integer number (1613333700).

Almost surely, 2^6453125641 is an apocalyptic number.

It is an amenable number.

6453125641 is a deficient number, since it is larger than the sum of its proper divisors (209159).

6453125641 is a wasteful number, since it uses less digits than its factorization.

6453125641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209158.

The product of its digits is 86400, while the sum is 37.

The square root of 6453125641 is about 80331.3490550233. The cubic root of 6453125641 is about 1861.7586212302.

The spelling of 6453125641 in words is "six billion, four hundred fifty-three million, one hundred twenty-five thousand, six hundred forty-one".