1009671571492 has 6 divisors (see below), whose sum is σ = 1766925250118. Its totient is φ = 504835785744.

The previous prime is 1009671571463. The next prime is 1009671571499. The reversal of 1009671571492 is 2941751769001.

It can be written as a sum of positive squares in only one way, i.e., 783993368356 + 225678203136 = 885434^2 + 475056^2 .

It is not an unprimeable number, because it can be changed into a prime (1009671571499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126208946433 + ... + 126208946440.

Almost surely, 2^{1009671571492} is an apocalyptic number.

It is an amenable number.

1009671571492 is a deficient number, since it is larger than the sum of its proper divisors (757253678626).

1009671571492 is a wasteful number, since it uses less digits than its factorization.

1009671571492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252417892877 (or 252417892875 counting only the distinct ones).

The product of its (nonzero) digits is 952560, while the sum is 52.

The spelling of 1009671571492 in words is "one trillion, nine billion, six hundred seventy-one million, five hundred seventy-one thousand, four hundred ninety-two".