1078131516277 has 8 divisors (see below), whose sum is σ = 1078487017400. Its totient is φ = 1077776086464.

The previous prime is 1078131516263. The next prime is 1078131516311. The reversal of 1078131516277 is 7726151318701.

It can be written as a sum of positive squares in 4 ways, for example, as 240172525476 + 837958990801 = 490074^2 + 915401^2 .

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 1078131516277 - 2³⁹ = 528375702389 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1078131516277.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1078131516227) 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, 50376343 + ... + 50397739.

It is an arithmetic number, because the mean of its divisors is an integer number (134810877175).

Almost surely, 2^{1078131516277} is an apocalyptic number.

It is an amenable number.

1078131516277 is a deficient number, since it is larger than the sum of its proper divisors (355501123).

1078131516277 is an equidigital number, since it uses as much as digits as its factorization.

1078131516277 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35655.

The product of its (nonzero) digits is 493920, while the sum is 49.

The spelling of 1078131516277 in words is "one trillion, seventy-eight billion, one hundred thirty-one million, five hundred sixteen thousand, two hundred seventy-seven".