6265387920 has 80 divisors (see below), whose sum is σ = 21188411712. Its totient is φ = 1518881280.

The previous prime is 6265387903. The next prime is 6265387957. The reversal of 6265387920 is 297835626.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 6265387920.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1183987 + ... + 1189266.

Almost surely, 2^6265387920 is an apocalyptic number.

6265387920 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6265387920 is an abundant number, since it is smaller than the sum of its proper divisors (14923023792).

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

6265387920 is a wasteful number, since it uses less digits than its factorization.

6265387920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2373280 (or 2373274 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 48.

The square root of 6265387920 is about 79154.2034259710. The cubic root of 6265387920 is about 1843.5262325466.

The spelling of 6265387920 in words is "six billion, two hundred sixty-five million, three hundred eighty-seven thousand, nine hundred twenty".