400537746634 has 16 divisors (see below), whose sum is σ = 606943355040. Its totient is φ = 198227081520.

The previous prime is 400537746599. The next prime is 400537746643. The reversal of 400537746634 is 436647735004.

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, 734424 + ... + 1157779.

It is an arithmetic number, because the mean of its divisors is an integer number (37933959690).

Almost surely, 2^400537746634 is an apocalyptic number.

400537746634 is a deficient number, since it is larger than the sum of its proper divisors (206405608406).

400537746634 is a wasteful number, since it uses less digits than its factorization.

400537746634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1893285.

The product of its (nonzero) digits is 5080320, while the sum is 49.

The spelling of 400537746634 in words is "four hundred billion, five hundred thirty-seven million, seven hundred forty-six thousand, six hundred thirty-four".