32572078778000 has 160 divisors (see below), whose sum is σ = 83992141658880. Its totient is φ = 12174208972800.

The previous prime is 32572078777999. The next prime is 32572078778009. The reversal of 32572078778000 is 87787027523.

It is not an unprimeable number, because it can be changed into a prime (32572078778009) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1279949 + ... + 8172051.

It is an arithmetic number, because the mean of its divisors is an integer number (524950885368).

Almost surely, 2^{32572078778000} 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 32572078778000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41996070829440).

32572078778000 is an abundant number, since it is smaller than the sum of its proper divisors (51420062880880).

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

32572078778000 is a wasteful number, since it uses less digits than its factorization.

32572078778000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6892282 (or 6892266 counting only the distinct ones).

The product of its (nonzero) digits is 9219840, while the sum is 56.

The spelling of 32572078778000 in words is "thirty-two trillion, five hundred seventy-two billion, seventy-eight million, seven hundred seventy-eight thousand".