45078769872 has 60 divisors (see below), whose sum is σ = 129234986244. Its totient is φ = 14659760640.

The previous prime is 45078769819. The next prime is 45078769909. The reversal of 45078769872 is 27896787054.

It can be written as a sum of positive squares in 2 ways, for example, as 8957486736 + 36121283136 = 94644^2 + 190056^2 .

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3811743 + ... + 3823550.

Almost surely, 2^45078769872 is an apocalyptic number.

It is an amenable number.

45078769872 is an abundant number, since it is smaller than the sum of its proper divisors (84156216372).

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

45078769872 is a wasteful number, since it uses less digits than its factorization.

45078769872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7635348 (or 7635339 counting only the distinct ones).

The product of its (nonzero) digits is 47416320, while the sum is 63.

The spelling of 45078769872 in words is "forty-five billion, seventy-eight million, seven hundred sixty-nine thousand, eight hundred seventy-two".