944675139136 has 21 divisors (see below), whose sum is σ = 1874605158961. Its totient is φ = 472333681792.

The previous prime is 944675139077. The next prime is 944675139143. The reversal of 944675139136 is 631931576449.

The square root of 944675139136 is 971944.

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

944675139136 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 828900993600 + 115774145536 = 910440^2 + 340256^2 .

It is a super-2 number, since 2×944675139136² (a number of 25 digits) contains 22 as substring.

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, 7714806 + ... + 7836298.

Almost surely, 2^944675139136 is an apocalyptic number.

944675139136 is the 971944-th square number.

It is an amenable number.

944675139136 is a deficient number, since it is larger than the sum of its proper divisors (929930019825).

944675139136 is an frugal number, since it uses more digits than its factorization.

944675139136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242998 (or 121495 counting only the distinct ones).

The product of its digits is 14696640, while the sum is 58.

The spelling of 944675139136 in words is "nine hundred forty-four billion, six hundred seventy-five million, one hundred thirty-nine thousand, one hundred thirty-six".