11451501289 has 2 divisors, whose sum is σ = 11451501290. Its totient is φ = 11451501288.

The previous prime is 11451501263. The next prime is 11451501407. The reversal of 11451501289 is 98210515411.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10016606889 + 1434894400 = 100083^2 + 37880^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11451501289 is a prime.

It is a super-2 number, since 2×11451501289² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11451501689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5725750644 + 5725750645.

It is an arithmetic number, because the mean of its divisors is an integer number (5725750645).

Almost surely, 2^11451501289 is an apocalyptic number.

It is an amenable number.

11451501289 is a deficient number, since it is larger than the sum of its proper divisors (1).

11451501289 is an equidigital number, since it uses as much as digits as its factorization.

11451501289 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14400, while the sum is 37.

The spelling of 11451501289 in words is "eleven billion, four hundred fifty-one million, five hundred one thousand, two hundred eighty-nine".