6404129497 has 16 divisors (see below), whose sum is σ = 6682822272. Its totient is φ = 6131341440.

The previous prime is 6404129491. The next prime is 6404129503. The reversal of 6404129497 is 7949214046.

It is an interprime number because it is at equal distance from previous prime (6404129491) and next prime (6404129503).

It is a cyclic number.

It is not a de Polignac number, because 6404129497 - 2²³ = 6395740889 is a prime.

It is a super-2 number, since 2×6404129497² = 82025749228690946018, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6404129491) 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, 1539973 + ... + 1544125.

It is an arithmetic number, because the mean of its divisors is an integer number (417676392).

Almost surely, 2^6404129497 is an apocalyptic number.

It is an amenable number.

6404129497 is a deficient number, since it is larger than the sum of its proper divisors (278692775).

6404129497 is a wasteful number, since it uses less digits than its factorization.

6404129497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4848.

The product of its (nonzero) digits is 435456, while the sum is 46.

The square root of 6404129497 is about 80025.8051943247. The cubic root of 6404129497 is about 1857.0347689899.

The spelling of 6404129497 in words is "six billion, four hundred four million, one hundred twenty-nine thousand, four hundred ninety-seven".