32978261532 has 12 divisors (see below), whose sum is σ = 76949276936. Its totient is φ = 10992753840.

The previous prime is 32978261513. The next prime is 32978261573. The reversal of 32978261532 is 23516287923.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1374094219 + ... + 1374094242.

Almost surely, 2^32978261532 is an apocalyptic number.

It is an amenable number.

32978261532 is an abundant number, since it is smaller than the sum of its proper divisors (43971015404).

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

32978261532 is a wasteful number, since it uses less digits than its factorization.

32978261532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2748188468 (or 2748188466 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 48.

The spelling of 32978261532 in words is "thirty-two billion, nine hundred seventy-eight million, two hundred sixty-one thousand, five hundred thirty-two".