45645630678 has 64 divisors (see below), whose sum is σ = 104238973440. Its totient is φ = 14795071200.

The previous prime is 45645630677. The next prime is 45645630739. The reversal of 45645630678 is 87603654654.

45645630678 is a `hidden beast` number, since 4 + 5 + 6 + 4 + 563 + 0 + 6 + 78 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45645630677) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3852223 + ... + 3864053.

It is an arithmetic number, because the mean of its divisors is an integer number (1628733960).

Almost surely, 2^45645630678 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45645630678, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52119486720).

45645630678 is an abundant number, since it is smaller than the sum of its proper divisors (58593342762).

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

45645630678 is a wasteful number, since it uses less digits than its factorization.

45645630678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13810 (or 13804 counting only the distinct ones).

The product of its (nonzero) digits is 14515200, while the sum is 54.

The spelling of 45645630678 in words is "forty-five billion, six hundred forty-five million, six hundred thirty thousand, six hundred seventy-eight".