745172804736 has 384 divisors, whose sum is σ = 2265390167040. Its totient is φ = 243771171840.

The previous prime is 745172804707. The next prime is 745172804767. The reversal of 745172804736 is 637408271547.

745172804736 is a `hidden beast` number, since 7 + 4 + 517 + 2 + 80 + 47 + 3 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (384).

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 580804351 + ... + 580805633.

It is an arithmetic number, because the mean of its divisors is an integer number (5899453560).

Almost surely, 2^745172804736 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 745172804736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1132695083520).

745172804736 is an abundant number, since it is smaller than the sum of its proper divisors (1520217362304).

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

745172804736 is a wasteful number, since it uses less digits than its factorization.

745172804736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1646 (or 1622 counting only the distinct ones).

The product of its (nonzero) digits is 7902720, while the sum is 54.

The spelling of 745172804736 in words is "seven hundred forty-five billion, one hundred seventy-two million, eight hundred four thousand, seven hundred thirty-six".