1261302117415 has 8 divisors (see below), whose sum is σ = 1513606429008. Its totient is φ = 1009012435200.

The previous prime is 1261302117407. The next prime is 1261302117443. The reversal of 1261302117415 is 5147112031621.

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

It is not a de Polignac number, because 1261302117415 - 2³ = 1261302117407 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 (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3466762 + ... + 3813271.

It is an arithmetic number, because the mean of its divisors is an integer number (189200803626).

Almost surely, 2^{1261302117415} is an apocalyptic number.

1261302117415 is a deficient number, since it is larger than the sum of its proper divisors (252304311593).

1261302117415 is an equidigital number, since it uses as much as digits as its factorization.

1261302117415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7314689.

The product of its (nonzero) digits is 10080, while the sum is 34.

The spelling of 1261302117415 in words is "one trillion, two hundred sixty-one billion, three hundred two million, one hundred seventeen thousand, four hundred fifteen".