754497338920 has 128 divisors (see below), whose sum is σ = 1875098484000. Its totient is φ = 271454699520.

The previous prime is 754497338909. The next prime is 754497338939. The reversal of 754497338920 is 29833794457.

It can be written as a sum of positive squares in 16 ways, for example, as 25908765444 + 728588573476 = 160962^2 + 853574^2 .

It is a super-2 number, since 2×754497338920² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17652936 + ... + 17695624.

Almost surely, 2^754497338920 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 754497338920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (937549242000).

754497338920 is an abundant number, since it is smaller than the sum of its proper divisors (1120601145080).

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

754497338920 is a wasteful number, since it uses less digits than its factorization.

754497338920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43583 (or 43579 counting only the distinct ones).

The product of its (nonzero) digits is 45722880, while the sum is 61.

The spelling of 754497338920 in words is "seven hundred fifty-four billion, four hundred ninety-seven million, three hundred thirty-eight thousand, nine hundred twenty".