32147375646 has 16 divisors (see below), whose sum is σ = 64296666000. Its totient is φ = 10715472768.

The previous prime is 32147375639. The next prime is 32147375647. The reversal of 32147375646 is 64657374123.

It is a junction number, because it is equal to n+sod(n) for n = 32147375595 and 32147375604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32147375647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 232540 + ... + 344048.

It is an arithmetic number, because the mean of its divisors is an integer number (4018541625).

Almost surely, 2^32147375646 is an apocalyptic number.

32147375646 is an abundant number, since it is smaller than the sum of its proper divisors (32149290354).

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

32147375646 is a wasteful number, since it uses less digits than its factorization.

32147375646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159563.

The product of its digits is 2540160, while the sum is 48.

The spelling of 32147375646 in words is "thirty-two billion, one hundred forty-seven million, three hundred seventy-five thousand, six hundred forty-six".