747273261920 has 192 divisors, whose sum is σ = 1930511439360. Its totient is φ = 272376115200.

The previous prime is 747273261869. The next prime is 747273261937. The reversal of 747273261920 is 29162372747.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8807219 + ... + 8891661.

It is an arithmetic number, because the mean of its divisors is an integer number (10054747080).

Almost surely, 2^747273261920 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 747273261920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (965255719680).

747273261920 is an abundant number, since it is smaller than the sum of its proper divisors (1183238177440).

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

747273261920 is a wasteful number, since it uses less digits than its factorization.

747273261920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84589 (or 84581 counting only the distinct ones).

The product of its (nonzero) digits is 1778112, while the sum is 50.

The spelling of 747273261920 in words is "seven hundred forty-seven billion, two hundred seventy-three million, two hundred sixty-one thousand, nine hundred twenty".