1087137180949 has 2 divisors, whose sum is σ = 1087137180950. Its totient is φ = 1087137180948.

The previous prime is 1087137180931. The next prime is 1087137180991. The reversal of 1087137180949 is 9490817317801.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 622926612049 + 464210568900 = 789257^2 + 681330^2 .

It is an emirp because it is prime and its reverse (9490817317801) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1087137180949 is a prime.

It is a super-3 number, since 3×1087137180949³ (a number of 37 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1087137180893 and 1087137180902.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1087137180049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 543568590474 + 543568590475.

It is an arithmetic number, because the mean of its divisors is an integer number (543568590475).

Almost surely, 2^{1087137180949} is an apocalyptic number.

It is an amenable number.

1087137180949 is a deficient number, since it is larger than the sum of its proper divisors (1).

1087137180949 is an equidigital number, since it uses as much as digits as its factorization.

1087137180949 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3048192, while the sum is 58.

The spelling of 1087137180949 in words is "one trillion, eighty-seven billion, one hundred thirty-seven million, one hundred eighty thousand, nine hundred forty-nine".