6212903985 has 32 divisors (see below), whose sum is σ = 11226245760. Its totient is φ = 3259224000.

The previous prime is 6212903953. The next prime is 6212903987. The reversal of 6212903985 is 5893092126.

It is not a de Polignac number, because 6212903985 - 2⁵ = 6212903953 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 6212903985.

It is not an unprimeable number, because it can be changed into a prime (6212903987) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 368991 + ... + 385460.

It is an arithmetic number, because the mean of its divisors is an integer number (350820180).

Almost surely, 2^6212903985 is an apocalyptic number.

It is an amenable number.

6212903985 is a deficient number, since it is larger than the sum of its proper divisors (5013341775).

6212903985 is a wasteful number, since it uses less digits than its factorization.

6212903985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 754526 (or 754520 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The square root of 6212903985 is about 78821.9765357353. The cubic root of 6212903985 is about 1838.3641716110.

The spelling of 6212903985 in words is "six billion, two hundred twelve million, nine hundred three thousand, nine hundred eighty-five".