1153026781415 has 4 divisors (see below), whose sum is σ = 1383632137704. Its totient is φ = 922421425128.

The previous prime is 1153026781369. The next prime is 1153026781493. The reversal of 1153026781415 is 5141876203511.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1153026781415 - 2¹² = 1153026777319 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115302678137 + ... + 115302678146.

It is an arithmetic number, because the mean of its divisors is an integer number (345908034426).

Almost surely, 2^{1153026781415} is an apocalyptic number.

1153026781415 is a deficient number, since it is larger than the sum of its proper divisors (230605356289).

1153026781415 is an equidigital number, since it uses as much as digits as its factorization.

1153026781415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230605356288.

The product of its (nonzero) digits is 201600, while the sum is 44.

The spelling of 1153026781415 in words is "one trillion, one hundred fifty-three billion, twenty-six million, seven hundred eighty-one thousand, four hundred fifteen".