2045341621802 has 4 divisors (see below), whose sum is σ = 3068012432706. Its totient is φ = 1022670810900.

The previous prime is 2045341621801. The next prime is 2045341621877. The reversal of 2045341621802 is 2081261435402.

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

It can be written as a sum of positive squares in only one way, i.e., 1944655351081 + 100686270721 = 1394509^2 + 317311^2 .

It is not an unprimeable number, because it can be changed into a prime (2045341621801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511335405449 + ... + 511335405452.

Almost surely, 2^{2045341621802} is an apocalyptic number.

2045341621802 is a deficient number, since it is larger than the sum of its proper divisors (1022670810904).

2045341621802 is a wasteful number, since it uses less digits than its factorization.

2045341621802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1022670810903.

The product of its (nonzero) digits is 92160, while the sum is 38.

The spelling of 2045341621802 in words is "two trillion, forty-five billion, three hundred forty-one million, six hundred twenty-one thousand, eight hundred two".