1138893051515 has 8 divisors (see below), whose sum is σ = 1366677483360. Its totient is φ = 911110560192.

The previous prime is 1138893051511. The next prime is 1138893051529. The reversal of 1138893051515 is 5151503988311.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1138893051515 - 2² = 1138893051511 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1138893051511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1704527 + ... + 2276663.

It is an arithmetic number, because the mean of its divisors is an integer number (170834685420).

Almost surely, 2^{1138893051515} is an apocalyptic number.

1138893051515 is a deficient number, since it is larger than the sum of its proper divisors (227784431845).

1138893051515 is an equidigital number, since it uses as much as digits as its factorization.

1138893051515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 970261.

The product of its (nonzero) digits is 648000, while the sum is 50.

The spelling of 1138893051515 in words is "one trillion, one hundred thirty-eight billion, eight hundred ninety-three million, fifty-one thousand, five hundred fifteen".