17378980920 has 336 divisors, whose sum is σ = 68204642760. Its totient is φ = 3972011904.

The previous prime is 17378980873. The next prime is 17378980937. The reversal of 17378980920 is 2908987371.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 83 ways as a sum of consecutive naturals, for example, 1422759 + ... + 1434921.

Almost surely, 2^17378980920 is an apocalyptic number.

17378980920 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 17378980920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34102321380).

17378980920 is an abundant number, since it is smaller than the sum of its proper divisors (50825661840).

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

17378980920 is a wasteful number, since it uses less digits than its factorization.

17378980920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12206 (or 12180 counting only the distinct ones).

The product of its (nonzero) digits is 1524096, while the sum is 54.

The spelling of 17378980920 in words is "seventeen billion, three hundred seventy-eight million, nine hundred eighty thousand, nine hundred twenty".