45436226621 has 4 divisors (see below), whose sum is σ = 48108945852. Its totient is φ = 42763507392.

The previous prime is 45436226497. The next prime is 45436226629. The reversal of 45436226621 is 12662263454.

45436226621 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 40580088025 + 4856138596 = 201445^2 + 69686^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45436226621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45436226629) 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, 1336359590 + ... + 1336359623.

It is an arithmetic number, because the mean of its divisors is an integer number (12027236463).

Almost surely, 2^45436226621 is an apocalyptic number.

It is an amenable number.

45436226621 is a deficient number, since it is larger than the sum of its proper divisors (2672719231).

45436226621 is a wasteful number, since it uses less digits than its factorization.

45436226621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2672719230.

The product of its digits is 414720, while the sum is 41.

The spelling of 45436226621 in words is "forty-five billion, four hundred thirty-six million, two hundred twenty-six thousand, six hundred twenty-one".