5131049616 has 480 divisors, whose sum is σ = 19186771968. Its totient is φ = 1239183360.

The previous prime is 5131049569. The next prime is 5131049639. The reversal of 5131049616 is 6169401315.

5131049616 is a `hidden beast` number, since 5 + 1 + 31 + 0 + 4 + 9 + 616 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 30724765 + ... + 30724931.

Almost surely, 2^5131049616 is an apocalyptic number.

5131049616 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5131049616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9593385984).

5131049616 is an abundant number, since it is smaller than the sum of its proper divisors (14055722352).

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

5131049616 is a wasteful number, since it uses less digits than its factorization.

5131049616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379 (or 370 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 5131049616 is about 71631.3452058524. The cubic root of 5131049616 is about 1724.7867401136.

The spelling of 5131049616 in words is "five billion, one hundred thirty-one million, forty-nine thousand, six hundred sixteen".