6494387625 has 336 divisors, whose sum is σ = 14513640960. Its totient is φ = 2886840000.

The previous prime is 6494387611. The next prime is 6494387639. The reversal of 6494387625 is 5267834946.

6494387625 is a `hidden beast` number, since 6 + 4 + 9 + 4 + 3 + 8 + 7 + 625 = 666.

It is an interprime number because it is at equal distance from previous prime (6494387611) and next prime (6494387639).

It is not a de Polignac number, because 6494387625 - 2⁴ = 6494387609 is a prime.

Its product of digits (8709120) is a multiple of the sum of its prime factors (105).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 335 ways as a sum of consecutive naturals, for example, 209496360 + ... + 209496390.

It is an arithmetic number, because the mean of its divisors is an integer number (43195360).

Almost surely, 2^6494387625 is an apocalyptic number.

It is an amenable number.

6494387625 is an abundant number, since it is smaller than the sum of its proper divisors (8019253335).

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

6494387625 is a wasteful number, since it uses less digits than its factorization.

6494387625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105 (or 69 counting only the distinct ones).

The product of its digits is 8709120, while the sum is 54.

The square root of 6494387625 is about 80587.7634942179. The cubic root of 6494387625 is about 1865.7182890650.

The spelling of 6494387625 in words is "six billion, four hundred ninety-four million, three hundred eighty-seven thousand, six hundred twenty-five".