32007251978 has 16 divisors (see below), whose sum is σ = 51751633920. Its totient is φ = 14758974576.

The previous prime is 32007251977. The next prime is 32007252001. The reversal of 32007251978 is 87915270023.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (32007251977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 537998 + ... + 594521.

It is an arithmetic number, because the mean of its divisors is an integer number (3234477120).

Almost surely, 2^32007251978 is an apocalyptic number.

32007251978 is a deficient number, since it is larger than the sum of its proper divisors (19744381942).

32007251978 is a wasteful number, since it uses less digits than its factorization.

32007251978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1133621.

The product of its (nonzero) digits is 211680, while the sum is 44.

The spelling of 32007251978 in words is "thirty-two billion, seven million, two hundred fifty-one thousand, nine hundred seventy-eight".