45432504778 has 16 divisors (see below), whose sum is σ = 71778769920. Its totient is φ = 21507689376.

The previous prime is 45432504769. The next prime is 45432504779. The reversal of 45432504778 is 87740523454.

45432504778 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×45432504778³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (45432504779) 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, 296275 + ... + 422662.

It is an arithmetic number, because the mean of its divisors is an integer number (4486173120).

Almost surely, 2^45432504778 is an apocalyptic number.

45432504778 is a deficient number, since it is larger than the sum of its proper divisors (26346265142).

45432504778 is a wasteful number, since it uses less digits than its factorization.

45432504778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 720621.

The product of its (nonzero) digits is 3763200, while the sum is 49.

The spelling of 45432504778 in words is "forty-five billion, four hundred thirty-two million, five hundred four thousand, seven hundred seventy-eight".