31432641790 has 32 divisors (see below), whose sum is σ = 61741854720. Its totient is φ = 11426426400.

The previous prime is 31432641763. The next prime is 31432641791. The reversal of 31432641790 is 9714623413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31432641791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 316131 + ... + 403489.

It is an arithmetic number, because the mean of its divisors is an integer number (1929432960).

Almost surely, 2^31432641790 is an apocalyptic number.

31432641790 is a deficient number, since it is larger than the sum of its proper divisors (30309212930).

31432641790 is a wasteful number, since it uses less digits than its factorization.

31432641790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90648.

The product of its (nonzero) digits is 108864, while the sum is 40.

The spelling of 31432641790 in words is "thirty-one billion, four hundred thirty-two million, six hundred forty-one thousand, seven hundred ninety".