609882780000 has 480 divisors, whose sum is σ = 2159668459872. Its totient is φ = 149760000000.

The previous prime is 609882779971. The next prime is 609882780011. The reversal of 609882780000 is 87288906.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (480).

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 79 ways as a sum of consecutive naturals, for example, 468779350 + ... + 468780650.

Almost surely, 2^609882780000 is an apocalyptic number.

609882780000 is a gapful number since it is divisible by the number (60) 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 609882780000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1079834229936).

609882780000 is an abundant number, since it is smaller than the sum of its proper divisors (1549785679872).

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

609882780000 is a wasteful number, since it uses less digits than its factorization.

609882780000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1948 (or 1925 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 48.

The spelling of 609882780000 in words is "six hundred nine billion, eight hundred eighty-two million, seven hundred eighty thousand".