10439664042 has 16 divisors (see below), whose sum is σ = 20889776160.
Its totient is φ = 3478146672.
The previous prime is 10439664041. The next prime is 10439664043. The reversal of 10439664042 is 24046693401.
It is an interprime number because it is at equal distance from previous prime (10439664041) and next prime (10439664043).
It is not an unprimeable number, because it can be changed into a prime (10439664041) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 422317 + ... + 446352.
It is an arithmetic number, because the mean of its divisors is an integer number (1305611010).
Almost surely, 210439664042 is an apocalyptic number.
10439664042 is an abundant number, since it is smaller than the sum of its proper divisors (10450112118).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
10439664042 is a wasteful number, since it uses less digits than its factorization.
10439664042 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 870677.
The product of its (nonzero) digits is 124416, while the sum is 39.
The spelling of 10439664042 in words is "ten billion, four hundred thirty-nine million, six hundred sixty-four thousand, forty-two".