32520732990 has 32 divisors (see below), whose sum is σ = 78253572096. Its totient is φ = 8649549600.

The previous prime is 32520732977. The next prime is 32520732991. The reversal of 32520732990 is 9923702523.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32520732991) 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, 1403686 + ... + 1426665.

It is an arithmetic number, because the mean of its divisors is an integer number (2445424128).

Almost surely, 2^32520732990 is an apocalyptic number.

32520732990 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

32520732990 is an abundant number, since it is smaller than the sum of its proper divisors (45732839106).

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

32520732990 is a wasteful number, since it uses less digits than its factorization.

32520732990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2830744.

The product of its (nonzero) digits is 204120, while the sum is 42.

The spelling of 32520732990 in words is "thirty-two billion, five hundred twenty million, seven hundred thirty-two thousand, nine hundred ninety".