2058078274561 has 4 divisors (see below), whose sum is σ = 2058082530372. Its totient is φ = 2058074018752.

The previous prime is 2058078274547. The next prime is 2058078274597. The reversal of 2058078274561 is 1654728708502.

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

It can be written as a sum of positive squares in 2 ways, for example, as 479175450625 + 1578902823936 = 692225^2 + 1256544^2 .

It is a cyclic number.

It is not a de Polignac number, because 2058078274561 - 2¹³ = 2058078266369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2058078274531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1293436 + ... + 2406061.

It is an arithmetic number, because the mean of its divisors is an integer number (514520632593).

Almost surely, 2^{2058078274561} is an apocalyptic number.

It is an amenable number.

2058078274561 is a deficient number, since it is larger than the sum of its proper divisors (4255811).

2058078274561 is an equidigital number, since it uses as much as digits as its factorization.

2058078274561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4255810.

The product of its (nonzero) digits is 7526400, while the sum is 55.

The spelling of 2058078274561 in words is "two trillion, fifty-eight billion, seventy-eight million, two hundred seventy-four thousand, five hundred sixty-one".