2445197688 has 192 divisors, whose sum is σ = 7100795520. Its totient is φ = 758937600.

The previous prime is 2445197663. The next prime is 2445197693. The reversal of 2445197688 is 8867915442.

It is a happy number.

2445197688 is a `hidden beast` number, since 2 + 44 + 519 + 7 + 6 + 88 = 666.

2445197688 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6662481 + ... + 6662847.

It is an arithmetic number, because the mean of its divisors is an integer number (36983310).

Almost surely, 2^2445197688 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2445197688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3550397760).

2445197688 is an abundant number, since it is smaller than the sum of its proper divisors (4655597832).

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

2445197688 is a wasteful number, since it uses less digits than its factorization.

2445197688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 518 (or 511 counting only the distinct ones).

The product of its digits is 3870720, while the sum is 54.

The square root of 2445197688 is about 49448.9402110905. The cubic root of 2445197688 is about 1347.2183580280.

The spelling of 2445197688 in words is "two billion, four hundred forty-five million, one hundred ninety-seven thousand, six hundred eighty-eight".