1649910783360 has 1024 divisors, whose sum is σ = 6336951552000. Its totient is φ = 364807618560.

The previous prime is 1649910783349. The next prime is 1649910783371. The reversal of 1649910783360 is 633870199461.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1649910783349) and next prime (1649910783371).

It is a self number, because there is not a number n which added to its sum of digits gives 1649910783360.

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, 2691534414 + ... + 2691535026.

It is an arithmetic number, because the mean of its divisors is an integer number (6188429250).

Almost surely, 2^{1649910783360} is an apocalyptic number.

1649910783360 is a gapful number since it is divisible by the number (10) 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 1649910783360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3168475776000).

1649910783360 is an abundant number, since it is smaller than the sum of its proper divisors (4687040768640).

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

1649910783360 is an equidigital number, since it uses as much as digits as its factorization.

1649910783360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 784 (or 758 counting only the distinct ones).

The product of its (nonzero) digits is 5878656, while the sum is 57.

The spelling of 1649910783360 in words is "one trillion, six hundred forty-nine billion, nine hundred ten million, seven hundred eighty-three thousand, three hundred sixty".