1009638473115 has 32 divisors (see below), whose sum is σ = 1628682177600. Its totient is φ = 534064398336.

The previous prime is 1009638473111. The next prime is 1009638473143. The reversal of 1009638473115 is 5113748369001.

It is not a de Polignac number, because 1009638473115 - 2² = 1009638473111 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1009638473111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1168539 + ... + 1839771.

It is an arithmetic number, because the mean of its divisors is an integer number (50896318050).

Almost surely, 2^{1009638473115} is an apocalyptic number.

1009638473115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1009638473115 is a deficient number, since it is larger than the sum of its proper divisors (619043704485).

1009638473115 is a wasteful number, since it uses less digits than its factorization.

1009638473115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 672063.

The product of its (nonzero) digits is 544320, while the sum is 48.

The spelling of 1009638473115 in words is "one trillion, nine billion, six hundred thirty-eight million, four hundred seventy-three thousand, one hundred fifteen".