11451580852 has 6 divisors (see below), whose sum is σ = 20040266498. Its totient is φ = 5725790424.

The previous prime is 11451580831. The next prime is 11451580859. The reversal of 11451580852 is 25808515411.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 10095426576 + 1356154276 = 100476^2 + 36826^2 .

It is a super-2 number, since 2×11451580852² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11451580859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1431447603 + ... + 1431447610.

Almost surely, 2^11451580852 is an apocalyptic number.

It is an amenable number.

11451580852 is a deficient number, since it is larger than the sum of its proper divisors (8588685646).

11451580852 is a wasteful number, since it uses less digits than its factorization.

11451580852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2862895217 (or 2862895215 counting only the distinct ones).

The product of its (nonzero) digits is 64000, while the sum is 40.

The spelling of 11451580852 in words is "eleven billion, four hundred fifty-one million, five hundred eighty thousand, eight hundred fifty-two".