5406502788 has 90 divisors (see below), whose sum is σ = 14277741786. Its totient is φ = 1783886976.

The previous prime is 5406502781. The next prime is 5406502793. The reversal of 5406502788 is 8872056045.

5406502788 is a `hidden beast` number, since 540 + 6 + 5 + 0 + 27 + 88 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 2138322564 + 3268180224 = 46242^2 + 57168^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5406502781) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 15491238 + ... + 15491586.

Almost surely, 2^5406502788 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 5406502788, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7138870893).

5406502788 is an abundant number, since it is smaller than the sum of its proper divisors (8871238998).

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

5406502788 is a wasteful number, since it uses less digits than its factorization.

5406502788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 851 (or 491 counting only the distinct ones).

The product of its (nonzero) digits is 537600, while the sum is 45.

The square root of 5406502788 is about 73528.9248391407. The cubic root of 5406502788 is about 1755.1145925614.

The spelling of 5406502788 in words is "five billion, four hundred six million, five hundred two thousand, seven hundred eighty-eight".