1009874921745 has 16 divisors (see below), whose sum is σ = 1619480522880. Its totient is φ = 537373075584.

The previous prime is 1009874921677. The next prime is 1009874921777. The reversal of 1009874921745 is 5471294789001.

It is not a de Polignac number, because 1009874921745 - 2¹⁸ = 1009874659601 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76673364 + ... + 76686533.

It is an arithmetic number, because the mean of its divisors is an integer number (101217532680).

Almost surely, 2^{1009874921745} is an apocalyptic number.

1009874921745 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1009874921745 is a deficient number, since it is larger than the sum of its proper divisors (609605601135).

1009874921745 is a wasteful number, since it uses less digits than its factorization.

1009874921745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153360344.

The product of its (nonzero) digits is 5080320, while the sum is 57.

The spelling of 1009874921745 in words is "one trillion, nine billion, eight hundred seventy-four million, nine hundred twenty-one thousand, seven hundred forty-five".