11952897659 has 4 divisors (see below), whose sum is σ = 12656009304. Its totient is φ = 11249786016.

The previous prime is 11952897631. The next prime is 11952897667. The reversal of 11952897659 is 95679825911.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 95679825911 = 163 ⋅586992797.

It is a cyclic number.

It is not a de Polignac number, because 11952897659 - 2³² = 7657930363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11952897689) 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, 351555797 + ... + 351555830.

It is an arithmetic number, because the mean of its divisors is an integer number (3164002326).

Almost surely, 2^11952897659 is an apocalyptic number.

11952897659 is a deficient number, since it is larger than the sum of its proper divisors (703111645).

11952897659 is an equidigital number, since it uses as much as digits as its factorization.

11952897659 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 703111644.

The product of its digits is 12247200, while the sum is 62.

The spelling of 11952897659 in words is "eleven billion, nine hundred fifty-two million, eight hundred ninety-seven thousand, six hundred fifty-nine".