1800913587312 has 640 divisors, whose sum is σ = 5896422604800. Its totient is φ = 462069522432.

The previous prime is 1800913587299. The next prime is 1800913587337. The reversal of 1800913587312 is 2137853190081.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 3580344853 + ... + 3580345355.

It is an arithmetic number, because the mean of its divisors is an integer number (9213160320).

Almost surely, 2^{1800913587312} is an apocalyptic number.

1800913587312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1800913587312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2948211302400).

1800913587312 is an abundant number, since it is smaller than the sum of its proper divisors (4095509017488).

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

1800913587312 is a wasteful number, since it uses less digits than its factorization.

1800913587312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 885 (or 879 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 48.

The spelling of 1800913587312 in words is "one trillion, eight hundred billion, nine hundred thirteen million, five hundred eighty-seven thousand, three hundred twelve".