5445204778 has 16 divisors (see below), whose sum is σ = 9099415080. Its totient is φ = 2426510016.

The previous prime is 5445204773. The next prime is 5445204799. The reversal of 5445204778 is 8774025445.

It can be written as a sum of positive squares in 4 ways, for example, as 4378071889 + 1067132889 = 66167^2 + 32667^2 .

It is not an unprimeable number, because it can be changed into a prime (5445204773) 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, 3610125 + ... + 3611632.

Almost surely, 2^5445204778 is an apocalyptic number.

5445204778 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

5445204778 is a deficient number, since it is larger than the sum of its proper divisors (3654210302).

5445204778 is a wasteful number, since it uses less digits than its factorization.

5445204778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7221801.

The product of its (nonzero) digits is 1254400, while the sum is 46.

The square root of 5445204778 is about 73791.6308127148. The cubic root of 5445204778 is about 1759.2925852331.

The spelling of 5445204778 in words is "five billion, four hundred forty-five million, two hundred four thousand, seven hundred seventy-eight".