738779001320 has 64 divisors (see below), whose sum is σ = 1695930106320. Its totient is φ = 289539753984.

The previous prime is 738779001313. The next prime is 738779001349. The reversal of 738779001320 is 23100977837.

It can be written as a sum of positive squares in 8 ways, for example, as 494622450436 + 244156550884 = 703294^2 + 494122^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1316252 + ... + 1791668.

Almost surely, 2^738779001320 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 738779001320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (847965053160).

738779001320 is an abundant number, since it is smaller than the sum of its proper divisors (957151105000).

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

738779001320 is a wasteful number, since it uses less digits than its factorization.

738779001320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 476214 (or 476210 counting only the distinct ones).

The product of its (nonzero) digits is 444528, while the sum is 47.

The spelling of 738779001320 in words is "seven hundred thirty-eight billion, seven hundred seventy-nine million, one thousand, three hundred twenty".