32811357894 has 64 divisors (see below), whose sum is σ = 78297560064. Its totient is φ = 8962563456.

The previous prime is 32811357851. The next prime is 32811357907. The reversal of 32811357894 is 49875311823.

It is a super-2 number, since 2×32811357894² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2207632 + ... + 2222444.

It is an arithmetic number, because the mean of its divisors is an integer number (1223399376).

Almost surely, 2^32811357894 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 32811357894, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39148780032).

32811357894 is an abundant number, since it is smaller than the sum of its proper divisors (45486202170).

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

32811357894 is a wasteful number, since it uses less digits than its factorization.

32811357894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17141.

The product of its digits is 1451520, while the sum is 51.

The spelling of 32811357894 in words is "thirty-two billion, eight hundred eleven million, three hundred fifty-seven thousand, eight hundred ninety-four".