6297555780 has 72 divisors (see below), whose sum is σ = 19132737624. Its totient is φ = 1676697600.

The previous prime is 6297555767. The next prime is 6297555787. The reversal of 6297555780 is 875557926.

6297555780 is a `hidden beast` number, since 6 + 2 + 9 + 7 + 5 + 557 + 80 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 3064951044 + 3232604736 = 55362^2 + 56856^2 .

It is a super-2 number, since 2×6297555780² = 79318417604422816800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6297555787) 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 23 ways as a sum of consecutive naturals, for example, 88090 + ... + 142670.

It is an arithmetic number, because the mean of its divisors is an integer number (265732467).

Almost surely, 2^6297555780 is an apocalyptic number.

6297555780 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6297555780 is an abundant number, since it is smaller than the sum of its proper divisors (12835181844).

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

6297555780 is a wasteful number, since it uses less digits than its factorization.

6297555780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55237 (or 55232 counting only the distinct ones).

The product of its (nonzero) digits is 5292000, while the sum is 54.

The square root of 6297555780 is about 79357.1406994985. The cubic root of 6297555780 is about 1846.6758695008.

The spelling of 6297555780 in words is "six billion, two hundred ninety-seven million, five hundred fifty-five thousand, seven hundred eighty".