1820370139332 has 24 divisors (see below), whose sum is σ = 4272964643136. Its totient is φ = 603156572448.

The previous prime is 1820370139321. The next prime is 1820370139339. The reversal of 1820370139332 is 2339310730281.

It is not an unprimeable number, because it can be changed into a prime (1820370139339) 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, 454182163 + ... + 454186170.

It is an arithmetic number, because the mean of its divisors is an integer number (178040193464).

Almost surely, 2^{1820370139332} is an apocalyptic number.

1820370139332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1820370139332 is an abundant number, since it is smaller than the sum of its proper divisors (2452594503804).

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

1820370139332 is a wasteful number, since it uses less digits than its factorization.

1820370139332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 908368507 (or 908368505 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 42.

The spelling of 1820370139332 in words is "one trillion, eight hundred twenty billion, three hundred seventy million, one hundred thirty-nine thousand, three hundred thirty-two".