2757878705320 has 16 divisors (see below), whose sum is σ = 6205227087060. Its totient is φ = 1103151482112.

The previous prime is 2757878705317. The next prime is 2757878705347. The reversal of 2757878705320 is 235078787572.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2547350065764 + 210528639556 = 1596042^2 + 458834^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34473483777 + ... + 34473483856.

Almost surely, 2^{2757878705320} is an apocalyptic number.

2757878705320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2757878705320 is an abundant number, since it is smaller than the sum of its proper divisors (3447348381740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2757878705320 is a wasteful number, since it uses less digits than its factorization.

2757878705320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68946967644 (or 68946967640 counting only the distinct ones).

The product of its (nonzero) digits is 46099200, while the sum is 61.

The spelling of 2757878705320 in words is "two trillion, seven hundred fifty-seven billion, eight hundred seventy-eight million, seven hundred five thousand, three hundred twenty".