6379620975 has 432 divisors, whose sum is σ = 15974533120. Its totient is φ = 2360793600.

The previous prime is 6379620959. The next prime is 6379620979. The reversal of 6379620975 is 5790269736.

6379620975 is a `hidden beast` number, since 6 + 3 + 7 + 9 + 620 + 9 + 7 + 5 = 666.

It is not a de Polignac number, because 6379620975 - 2⁴ = 6379620959 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6379620979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 431 ways as a sum of consecutive naturals, for example, 205794210 + ... + 205794240.

Almost surely, 2^6379620975 is an apocalyptic number.

6379620975 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

6379620975 is an abundant number, since it is smaller than the sum of its proper divisors (9594912145).

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

6379620975 is a wasteful number, since it uses less digits than its factorization.

6379620975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132 (or 101 counting only the distinct ones).

The product of its (nonzero) digits is 4286520, while the sum is 54.

The square root of 6379620975 is about 79872.5295392602. The cubic root of 6379620975 is about 1854.6627911008.

The spelling of 6379620975 in words is "six billion, three hundred seventy-nine million, six hundred twenty thousand, nine hundred seventy-five".