1808149590240 has 96 divisors (see below), whose sum is σ = 6509338536960. Its totient is φ = 413291334144.

The previous prime is 1808149590211. The next prime is 1808149590287. The reversal of 1808149590240 is 420959418081.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 269066520 + ... + 269073239.

It is an arithmetic number, because the mean of its divisors is an integer number (67805609760).

Almost surely, 2^{1808149590240} is an apocalyptic number.

1808149590240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1808149590240 is an abundant number, since it is smaller than the sum of its proper divisors (4701188946720).

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

1808149590240 is a wasteful number, since it uses less digits than its factorization.

1808149590240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 538139784 (or 538139776 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 51.

The spelling of 1808149590240 in words is "one trillion, eight hundred eight billion, one hundred forty-nine million, five hundred ninety thousand, two hundred forty".