11464531646 has 4 divisors (see below), whose sum is σ = 17196797472. Its totient is φ = 5732265822.

The previous prime is 11464531627. The next prime is 11464531651. The reversal of 11464531646 is 64613546411.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 64613546411 = 19 ⋅3400712969.

It is a super-3 number, since 3×11464531646³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2866132910 + ... + 2866132913.

It is an arithmetic number, because the mean of its divisors is an integer number (4299199368).

Almost surely, 2^11464531646 is an apocalyptic number.

11464531646 is a deficient number, since it is larger than the sum of its proper divisors (5732265826).

11464531646 is an equidigital number, since it uses as much as digits as its factorization.

11464531646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5732265825.

The product of its digits is 207360, while the sum is 41.

The spelling of 11464531646 in words is "eleven billion, four hundred sixty-four million, five hundred thirty-one thousand, six hundred forty-six".