2045400045402 has 32 divisors (see below), whose sum is σ = 4675416159744. Its totient is φ = 584373006000.

The previous prime is 2045400045391. The next prime is 2045400045439.

2045400045402 is nontrivially palindromic in base 10.

It is a super-3 number, since 3×2045400045402³ (a number of 38 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 2045400045402.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 196624 + ... + 2032107.

It is an arithmetic number, because the mean of its divisors is an integer number (146106754992).

Almost surely, 2^{2045400045402} is an apocalyptic number.

2045400045402 is an abundant number, since it is smaller than the sum of its proper divisors (2630016114342).

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

2045400045402 is a wasteful number, since it uses less digits than its factorization.

2045400045402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2250594.

The product of its (nonzero) digits is 25600, while the sum is 30.

It can be divided in two parts, 20454000 and 45402, that added together give a palindrome (20499402).

The spelling of 2045400045402 in words is "two trillion, forty-five billion, four hundred million, forty-five thousand, four hundred two".