1918214569380 has 48 divisors (see below), whose sum is σ = 5686942020480. Its totient is φ = 481434244608.

The previous prime is 1918214569343. The next prime is 1918214569409. The reversal of 1918214569380 is 839654128191.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1918214569380.

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, 940300240 + ... + 940302279.

It is an arithmetic number, because the mean of its divisors is an integer number (118477958760).

Almost surely, 2^{1918214569380} is an apocalyptic number.

1918214569380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1918214569380 is an abundant number, since it is smaller than the sum of its proper divisors (3768727451100).

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

1918214569380 is a wasteful number, since it uses less digits than its factorization.

1918214569380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1880602548 (or 1880602546 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 57.

The spelling of 1918214569380 in words is "one trillion, nine hundred eighteen billion, two hundred fourteen million, five hundred sixty-nine thousand, three hundred eighty".