6430972797 has 12 divisors (see below), whose sum is σ = 9289878780. Its totient is φ = 4286994048.

The previous prime is 6430972783. The next prime is 6430972813. The reversal of 6430972797 is 7972790346.

6430972797 is a `hidden beast` number, since 64 + 309 + 7 + 279 + 7 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 418366116 + 6012606681 = 20454^2 + 77541^2 .

It is not a de Polignac number, because 6430972797 - 2⁶ = 6430972733 is a prime.

It is a super-2 number, since 2×6430972797² = 82714822231508006418, which contains 22 as substring.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6430972297) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 215079 + ... + 243147.

It is an arithmetic number, because the mean of its divisors is an integer number (774156565).

Almost surely, 2^6430972797 is an apocalyptic number.

It is an amenable number.

6430972797 is a deficient number, since it is larger than the sum of its proper divisors (2858905983).

6430972797 is a wasteful number, since it uses less digits than its factorization.

6430972797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53532 (or 53529 counting only the distinct ones).

The product of its (nonzero) digits is 4000752, while the sum is 54.

The square root of 6430972797 is about 80193.3463387082. The cubic root of 6430972797 is about 1859.6257771239.

The spelling of 6430972797 in words is "six billion, four hundred thirty million, nine hundred seventy-two thousand, seven hundred ninety-seven".