32269781388 has 54 divisors (see below), whose sum is σ = 81554152764. Its totient is φ = 9926674368.

The previous prime is 32269781381. The next prime is 32269781437. The reversal of 32269781388 is 88318796223.

It is a super-2 number, since 2×32269781388² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (32269781381) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 8087698 + ... + 8091686.

Almost surely, 2^32269781388 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 32269781388, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40777076382).

32269781388 is an abundant number, since it is smaller than the sum of its proper divisors (49284371376).

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

32269781388 is an equidigital number, since it uses as much as digits as its factorization.

32269781388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8011 (or 4007 counting only the distinct ones).

The product of its digits is 6967296, while the sum is 57.

The spelling of 32269781388 in words is "thirty-two billion, two hundred sixty-nine million, seven hundred eighty-one thousand, three hundred eighty-eight".