1009115425948 has 48 divisors (see below), whose sum is σ = 2020064707584. Its totient is φ = 432085308480.

The previous prime is 1009115425909. The next prime is 1009115425949. The reversal of 1009115425948 is 8495245119001.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1009115425949) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 301496811 + ... + 301500157.

It is an arithmetic number, because the mean of its divisors is an integer number (42084681408).

Almost surely, 2^{1009115425948} is an apocalyptic number.

It is an amenable number.

1009115425948 is an abundant number, since it is smaller than the sum of its proper divisors (1010949281636).

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

1009115425948 is a wasteful number, since it uses less digits than its factorization.

1009115425948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9922 (or 9920 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 49.

The spelling of 1009115425948 in words is "one trillion, nine billion, one hundred fifteen million, four hundred twenty-five thousand, nine hundred forty-eight".