5206945380 has 192 divisors, whose sum is σ = 18523373568. Its totient is φ = 1063134720.

The previous prime is 5206945333. The next prime is 5206945391. The reversal of 5206945380 is 835496025.

It is a super-2 number, since 2×5206945380² = 54224560380606688800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 153879 + ... + 184641.

It is an arithmetic number, because the mean of its divisors is an integer number (96475904).

Almost surely, 2^5206945380 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 5206945380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9261686784).

5206945380 is an abundant number, since it is smaller than the sum of its proper divisors (13316428188).

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

5206945380 is a wasteful number, since it uses less digits than its factorization.

5206945380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30826 (or 30824 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 42.

The square root of 5206945380 is about 72159.1669852140. The cubic root of 5206945380 is about 1733.2491957023.

The spelling of 5206945380 in words is "five billion, two hundred six million, nine hundred forty-five thousand, three hundred eighty".