9947545630 has 32 divisors (see below), whose sum is σ = 19582650720. Its totient is φ = 3608161920.

The previous prime is 9947545613. The next prime is 9947545661. The reversal of 9947545630 is 365457499.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70225 + ... + 157564.

It is an arithmetic number, because the mean of its divisors is an integer number (611957835).

Almost surely, 2^9947545630 is an apocalyptic number.

9947545630 is a deficient number, since it is larger than the sum of its proper divisors (9635105090).

9947545630 is a wasteful number, since it uses less digits than its factorization.

9947545630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228204.

The product of its (nonzero) digits is 4082400, while the sum is 52.

The square root of 9947545630 is about 99737.3833123769. The cubic root of 9947545630 is about 2150.6611004661.

The spelling of 9947545630 in words is "nine billion, nine hundred forty-seven million, five hundred forty-five thousand, six hundred thirty".