10642689579 has 4 divisors (see below), whose sum is σ = 14190252776. Its totient is φ = 7095126384.

The previous prime is 10642689529. The next prime is 10642689599. The reversal of 10642689579 is 97598624601.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97598624601 = 3 ⋅32532874867.

It is not a de Polignac number, because 10642689579 - 2¹² = 10642685483 is a prime.

It is a super-2 number, since 2×10642689579² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10642689529) 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, 1773781594 + ... + 1773781599.

It is an arithmetic number, because the mean of its divisors is an integer number (3547563194).

Almost surely, 2^10642689579 is an apocalyptic number.

10642689579 is a deficient number, since it is larger than the sum of its proper divisors (3547563197).

10642689579 is an equidigital number, since it uses as much as digits as its factorization.

10642689579 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3547563196.

The product of its (nonzero) digits is 6531840, while the sum is 57.

The spelling of 10642689579 in words is "ten billion, six hundred forty-two million, six hundred eighty-nine thousand, five hundred seventy-nine".