5490378155808 has 1440 divisors, whose sum is σ = 21205582852608. Its totient is φ = 1379524608000.

The previous prime is 5490378155771. The next prime is 5490378155831. The reversal of 5490378155808 is 8085518730945.

5490378155808 is a `hidden beast` number, since 5 + 4 + 9 + 0 + 3 + 78 + 1 + 558 + 0 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 3429342208 + ... + 3429343808.

Almost surely, 2^{5490378155808} 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 5490378155808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10602791426304).

5490378155808 is an abundant number, since it is smaller than the sum of its proper divisors (15715204696800).

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

5490378155808 is a wasteful number, since it uses less digits than its factorization.

5490378155808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1748 (or 1724 counting only the distinct ones).

The product of its (nonzero) digits is 48384000, while the sum is 63.

The spelling of 5490378155808 in words is "five trillion, four hundred ninety billion, three hundred seventy-eight million, one hundred fifty-five thousand, eight hundred eight".