609262781472 has 216 divisors, whose sum is σ = 1803100545792. Its totient is φ = 194942764800.

The previous prime is 609262781359. The next prime is 609262781483. The reversal of 609262781472 is 274187262906.

609262781472 is a `hidden beast` number, since 6 + 0 + 9 + 2 + 627 + 8 + 1 + 4 + 7 + 2 = 666.

It is a super-2 number, since 2×609262781472² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 143997597 + ... + 144001827.

It is an arithmetic number, because the mean of its divisors is an integer number (8347687712).

Almost surely, 2^609262781472 is an apocalyptic number.

609262781472 is a gapful number since it is divisible by the number (62) 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 609262781472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (901550272896).

609262781472 is an abundant number, since it is smaller than the sum of its proper divisors (1193837764320).

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

609262781472 is a wasteful number, since it uses less digits than its factorization.

609262781472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4532 (or 4394 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 54.

The spelling of 609262781472 in words is "six hundred nine billion, two hundred sixty-two million, seven hundred eighty-one thousand, four hundred seventy-two".