1009258878585 has 16 divisors (see below), whose sum is σ = 1621927930176. Its totient is φ = 535900160448.

The previous prime is 1009258878581. The next prime is 1009258878587. The reversal of 1009258878585 is 5858788529001.

It is not a de Polignac number, because 1009258878585 - 2² = 1009258878581 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1009258878581) 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, 148199074 + ... + 148205883.

It is an arithmetic number, because the mean of its divisors is an integer number (101370495636).

Almost surely, 2^{1009258878585} is an apocalyptic number.

1009258878585 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1009258878585 is a deficient number, since it is larger than the sum of its proper divisors (612669051591).

1009258878585 is a wasteful number, since it uses less digits than its factorization.

1009258878585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296405192.

The product of its (nonzero) digits is 64512000, while the sum is 66.

The spelling of 1009258878585 in words is "one trillion, nine billion, two hundred fifty-eight million, eight hundred seventy-eight thousand, five hundred eighty-five".