10429640639 has 16 divisors (see below), whose sum is σ = 11764279296. Its totient is φ = 9163742400.

The previous prime is 10429640629. The next prime is 10429640681. The reversal of 10429640639 is 93604692401.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 10429640639 - 2¹⁶ = 10429575103 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10429640639.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10429640629) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59807 + ... + 156320.

It is an arithmetic number, because the mean of its divisors is an integer number (735267456).

Almost surely, 2^10429640639 is an apocalyptic number.

10429640639 is a deficient number, since it is larger than the sum of its proper divisors (1334638657).

10429640639 is a wasteful number, since it uses less digits than its factorization.

10429640639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216286.

The product of its (nonzero) digits is 279936, while the sum is 44.

The spelling of 10429640639 in words is "ten billion, four hundred twenty-nine million, six hundred forty thousand, six hundred thirty-nine".