1009947998376 has 48 divisors (see below), whose sum is σ = 2809202210100. Its totient is φ = 327550701312.

The previous prime is 1009947998327. The next prime is 1009947998377. The reversal of 1009947998376 is 6738997499001.

1009947998376 is a `hidden beast` number, since 1 + 0 + 0 + 9 + 9 + 479 + 9 + 83 + 76 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 897168896100 + 112779102276 = 947190^2 + 335826^2 .

It is a Harshad number since it is a multiple of its sum of digits (72).

It is not an unprimeable number, because it can be changed into a prime (1009947998377) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 189552141 + ... + 189557468.

Almost surely, 2^{1009947998376} is an apocalyptic number.

It is an amenable number.

1009947998376 is an abundant number, since it is smaller than the sum of its proper divisors (1799254211724).

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

1009947998376 is a wasteful number, since it uses less digits than its factorization.

1009947998376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379109658 (or 379109651 counting only the distinct ones).

The product of its (nonzero) digits is 185177664, while the sum is 72.

The spelling of 1009947998376 in words is "one trillion, nine billion, nine hundred forty-seven million, nine hundred ninety-eight thousand, three hundred seventy-six".