6357971945 has 8 divisors (see below), whose sum is σ = 8216456136. Its totient is φ = 4695117696.

The previous prime is 6357971909. The next prime is 6357971981. The reversal of 6357971945 is 5491797536.

It is an interprime number because it is at equal distance from previous prime (6357971909) and next prime (6357971981).

It can be written as a sum of positive squares in 4 ways, for example, as 55517401 + 6302454544 = 7451^2 + 79388^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6357971945 - 2²⁰ = 6356923369 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48907412 + ... + 48907541.

It is an arithmetic number, because the mean of its divisors is an integer number (1027057017).

Almost surely, 2^6357971945 is an apocalyptic number.

6357971945 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

6357971945 is a deficient number, since it is larger than the sum of its proper divisors (1858484191).

6357971945 is a wasteful number, since it uses less digits than its factorization.

6357971945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97814971.

The product of its digits is 7144200, while the sum is 56.

The square root of 6357971945 is about 79736.8919948602. The cubic root of 6357971945 is about 1852.5625015413.

The spelling of 6357971945 in words is "six billion, three hundred fifty-seven million, nine hundred seventy-one thousand, nine hundred forty-five".