45203534378 has 16 divisors (see below), whose sum is σ = 71846212680. Its totient is φ = 21256736256.

The previous prime is 45203534371. The next prime is 45203534419. The reversal of 45203534378 is 87343530254.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 44383112929 + 820421449 = 210673^2 + 28643^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (45203534371) 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, 437483 + ... + 530846.

Almost surely, 2^45203534378 is an apocalyptic number.

45203534378 is a deficient number, since it is larger than the sum of its proper divisors (26642678302).

45203534378 is a wasteful number, since it uses less digits than its factorization.

45203534378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 969721.

The product of its (nonzero) digits is 1209600, while the sum is 44.

The spelling of 45203534378 in words is "forty-five billion, two hundred three million, five hundred thirty-four thousand, three hundred seventy-eight".