32505489838 has 4 divisors (see below), whose sum is σ = 48758234760. Its totient is φ = 16252744918.

The previous prime is 32505489823. The next prime is 32505489851. The reversal of 32505489838 is 83898450523.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 83898450523 = 224153 ⋅374291.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8126372458 + ... + 8126372461.

It is an arithmetic number, because the mean of its divisors is an integer number (12189558690).

Almost surely, 2^32505489838 is an apocalyptic number.

32505489838 is a deficient number, since it is larger than the sum of its proper divisors (16252744922).

32505489838 is a wasteful number, since it uses less digits than its factorization.

32505489838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16252744921.

The product of its (nonzero) digits is 8294400, while the sum is 55.

The spelling of 32505489838 in words is "thirty-two billion, five hundred five million, four hundred eighty-nine thousand, eight hundred thirty-eight".