1014747978409 has 9 divisors (see below), whose sum is σ = 1115396321431. Its totient is φ = 922488088720.

The previous prime is 1014747978407. The next prime is 1014747978449. The reversal of 1014747978409 is 9048797474101.

The square root of 1014747978409 is 1007347.

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

1014747978409 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., 91472978025 + 923275000384 = 302445^2 + 960872^2 .

It is not a de Polignac number, because 1014747978409 - 2¹ = 1014747978407 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1014747978407) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 11035029 + ... + 11126605.

Almost surely, 2^{1014747978409} is an apocalyptic number.

1014747978409 is the 1007347-th square number.

1014747978409 is the 503674-th centered octagonal number.

It is an amenable number.

1014747978409 is a deficient number, since it is larger than the sum of its proper divisors (100648343022).

1014747978409 is an frugal number, since it uses more digits than its factorization.

1014747978409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183176 (or 91588 counting only the distinct ones).

The product of its (nonzero) digits is 14224896, while the sum is 61.

The spelling of 1014747978409 in words is "one trillion, fourteen billion, seven hundred forty-seven million, nine hundred seventy-eight thousand, four hundred nine".