31060890080 has 96 divisors (see below), whose sum is σ = 80098720128. Its totient is φ = 11288332800.

The previous prime is 31060890013. The next prime is 31060890089. The reversal of 31060890080 is 8009806013.

It is a Cunningham number, because it is equal to 176241²-1.

It is a self number, because there is not a number n which added to its sum of digits gives 31060890080.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31060890089) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3873275 + ... + 3881285.

It is an arithmetic number, because the mean of its divisors is an integer number (834361668).

Almost surely, 2^31060890080 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31060890080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40049360064).

31060890080 is an abundant number, since it is smaller than the sum of its proper divisors (49037830048).

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

31060890080 is a wasteful number, since it uses less digits than its factorization.

31060890080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10240 (or 10232 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 35.

The spelling of 31060890080 in words is "thirty-one billion, sixty million, eight hundred ninety thousand, eighty".