11642400406 has 32 divisors (see below), whose sum is σ = 22428177408. Its totient is φ = 4405531680.

The previous prime is 11642400373. The next prime is 11642400421. The reversal of 11642400406 is 60400424611.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1386450 + ... + 1394821.

It is an arithmetic number, because the mean of its divisors is an integer number (700880544).

Almost surely, 2^11642400406 is an apocalyptic number.

11642400406 is a deficient number, since it is larger than the sum of its proper divisors (10785777002).

11642400406 is a wasteful number, since it uses less digits than its factorization.

11642400406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2781316.

The product of its (nonzero) digits is 4608, while the sum is 28.

The spelling of 11642400406 in words is "eleven billion, six hundred forty-two million, four hundred thousand, four hundred six".