9561023428 has 24 divisors (see below), whose sum is σ = 18255381984. Its totient is φ = 4345320000.

The previous prime is 9561023389. The next prime is 9561023449. The reversal of 9561023428 is 8243201659.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 530176 + ... + 547912.

It is an arithmetic number, because the mean of its divisors is an integer number (760640916).

Almost surely, 2^9561023428 is an apocalyptic number.

It is an amenable number.

9561023428 is a deficient number, since it is larger than the sum of its proper divisors (8694358556).

9561023428 is a wasteful number, since it uses less digits than its factorization.

9561023428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30003 (or 30001 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 9561023428 is about 97780.4859263851. The cubic root of 9561023428 is about 2122.4369321665.

The spelling of 9561023428 in words is "nine billion, five hundred sixty-one million, twenty-three thousand, four hundred twenty-eight".