31423536080 has 40 divisors (see below), whose sum is σ = 76904973600. Its totient is φ = 11907865728.

The previous prime is 31423536073. The next prime is 31423536091. The reversal of 31423536080 is 8063532413.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 31423536080.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10335170 + ... + 10338209.

It is an arithmetic number, because the mean of its divisors is an integer number (1922624340).

Almost surely, 2^31423536080 is an apocalyptic number.

It is an amenable number.

31423536080 is an abundant number, since it is smaller than the sum of its proper divisors (45481437520).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31423536080 is a wasteful number, since it uses less digits than its factorization.

31423536080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20673411 (or 20673405 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 35.

The spelling of 31423536080 in words is "thirty-one billion, four hundred twenty-three million, five hundred thirty-six thousand, eighty".