5405615154 has 48 divisors (see below), whose sum is σ = 12449551608. Its totient is φ = 1689255936.

The previous prime is 5405615153. The next prime is 5405615213. The reversal of 5405615154 is 4515165045.

5405615154 is a `hidden beast` number, since 5 + 40 + 561 + 5 + 1 + 54 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 5404455225 + 1159929 = 73515^2 + 1077^2 .

It is not an unprimeable number, because it can be changed into a prime (5405615153) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 44274 + ... + 113010.

Almost surely, 2^5405615154 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5405615154, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6224775804).

5405615154 is an abundant number, since it is smaller than the sum of its proper divisors (7043936454).

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

5405615154 is a wasteful number, since it uses less digits than its factorization.

5405615154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69019 (or 69016 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 36.

The square root of 5405615154 is about 73522.8886402051. Note that the first 3 decimals coincide. The cubic root of 5405615154 is about 1755.0185363421.

The spelling of 5405615154 in words is "five billion, four hundred five million, six hundred fifteen thousand, one hundred fifty-four".