2090979181745 has 8 divisors (see below), whose sum is σ = 2595698294760. Its totient is φ = 1615101160960.

The previous prime is 2090979181741. The next prime is 2090979181747. The reversal of 2090979181745 is 5471819790902.

It can be written as a sum of positive squares in 4 ways, for example, as 225047769664 + 1865931412081 = 474392^2 + 1365991^2 .

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

It is not a de Polignac number, because 2090979181745 - 2² = 2090979181741 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2090979181741) 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, 7210272896 + ... + 7210273185.

It is an arithmetic number, because the mean of its divisors is an integer number (324462286845).

Almost surely, 2^{2090979181745} is an apocalyptic number.

It is an amenable number.

2090979181745 is a deficient number, since it is larger than the sum of its proper divisors (504719113015).

2090979181745 is a wasteful number, since it uses less digits than its factorization.

2090979181745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14420546115.

The product of its (nonzero) digits is 11430720, while the sum is 62.

The spelling of 2090979181745 in words is "two trillion, ninety billion, nine hundred seventy-nine million, one hundred eighty-one thousand, seven hundred forty-five".