1806738992432 has 20 divisors (see below), whose sum is σ = 3818789234376. Its totient is φ = 821244996480.

The previous prime is 1806738992431. The next prime is 1806738992447. The reversal of 1806738992432 is 2342998376081.

It is not an unprimeable number, because it can be changed into a prime (1806738992431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5132781053 + ... + 5132781404.

Almost surely, 2^{1806738992432} is an apocalyptic number.

It is an amenable number.

1806738992432 is an abundant number, since it is smaller than the sum of its proper divisors (2012050241944).

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

1806738992432 is a wasteful number, since it uses less digits than its factorization.

1806738992432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10265562476 (or 10265562470 counting only the distinct ones).

The product of its (nonzero) digits is 31352832, while the sum is 62.

The spelling of 1806738992432 in words is "one trillion, eight hundred six billion, seven hundred thirty-eight million, nine hundred ninety-two thousand, four hundred thirty-two".