1947053568 has 40 divisors (see below), whose sum is σ = 5187076488. Its totient is φ = 649017344.

The previous prime is 1947053543. The next prime is 1947053579. The reversal of 1947053568 is 8653507491.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 632271 + ... + 635342.

Almost surely, 2^1947053568 is an apocalyptic number.

It is an amenable number.

1947053568 is an abundant number, since it is smaller than the sum of its proper divisors (3240022920).

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

1947053568 is an equidigital number, since it uses as much as digits as its factorization.

1947053568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1267634 (or 1267618 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 48.

The square root of 1947053568 is about 44125.4299469138. The cubic root of 1947053568 is about 1248.7034167358.

The spelling of 1947053568 in words is "one billion, nine hundred forty-seven million, fifty-three thousand, five hundred sixty-eight".