1086972615409 has 4 divisors (see below), whose sum is σ = 1086983028900. Its totient is φ = 1086962201920.

The previous prime is 1086972615373. The next prime is 1086972615427. The reversal of 1086972615409 is 9045162796801.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 360552211600 + 726420403809 = 600460^2 + 852303^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1086972615409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1086972615709) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5048572 + ... + 5259469.

It is an arithmetic number, because the mean of its divisors is an integer number (271745757225).

Almost surely, 2^{1086972615409} is an apocalyptic number.

It is an amenable number.

1086972615409 is a deficient number, since it is larger than the sum of its proper divisors (10413491).

1086972615409 is a wasteful number, since it uses less digits than its factorization.

1086972615409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10413490.

The product of its (nonzero) digits is 6531840, while the sum is 58.

The spelling of 1086972615409 in words is "one trillion, eighty-six billion, nine hundred seventy-two million, six hundred fifteen thousand, four hundred nine".