11429437646 has 16 divisors (see below), whose sum is σ = 18718978608. Its totient is φ = 5190681600.

The previous prime is 11429437639. The next prime is 11429437699. The reversal of 11429437646 is 64673492411.

It is a self number, because there is not a number n which added to its sum of digits gives 11429437646.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 199925 + ... + 250656.

It is an arithmetic number, because the mean of its divisors is an integer number (1169936163).

Almost surely, 2^11429437646 is an apocalyptic number.

11429437646 is a deficient number, since it is larger than the sum of its proper divisors (7289540962).

11429437646 is a wasteful number, since it uses less digits than its factorization.

11429437646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451747.

The product of its digits is 870912, while the sum is 47.

The spelling of 11429437646 in words is "eleven billion, four hundred twenty-nine million, four hundred thirty-seven thousand, six hundred forty-six".