738197145856 has 27 divisors (see below), whose sum is σ = 1473538149811. Its totient is φ = 369091699456.

The previous prime is 738197145809. The next prime is 738197145887. The reversal of 738197145856 is 658541791837.

The square root of 738197145856 is 859184.

It is a perfect power (a square), and thus also a powerful number.

It is a super-2 number, since 2×738197145856² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (64).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 13720095 + ... + 13773793.

Almost surely, 2^738197145856 is an apocalyptic number.

738197145856 is the 859184-th square number.

It is an amenable number.

738197145856 is a deficient number, since it is larger than the sum of its proper divisors (735341003955).

738197145856 is an frugal number, since it uses more digits than its factorization.

738197145856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107414 (or 53701 counting only the distinct ones).

The product of its digits is 50803200, while the sum is 64.

Multiplying 738197145856 by its sum of digits (64), we get a square (47244617334784 = 6873472²).

738197145856 divided by its sum of digits (64) gives a square (11534330404 = 107398²).

The spelling of 738197145856 in words is "seven hundred thirty-eight billion, one hundred ninety-seven million, one hundred forty-five thousand, eight hundred fifty-six".