4947597312 has 384 divisors, whose sum is σ = 16360081920. Its totient is φ = 1297612800.

The previous prime is 4947597253. The next prime is 4947597331. The reversal of 4947597312 is 2137957494.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (384).

It is a super-3 number, since 3×4947597312³ (a number of 30 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 48986062 + ... + 48986162.

It is an arithmetic number, because the mean of its divisors is an integer number (42604380).

Almost surely, 2^4947597312 is an apocalyptic number.

4947597312 is a gapful number since it is divisible by the number (42) 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 4947597312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8180040960).

4947597312 is an abundant number, since it is smaller than the sum of its proper divisors (11412484608).

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

4947597312 is a wasteful number, since it uses less digits than its factorization.

4947597312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217 (or 197 counting only the distinct ones).

The product of its digits is 1905120, while the sum is 51.

The square root of 4947597312 is about 70339.1591647213. The cubic root of 4947597312 is about 1703.9811322824.

The spelling of 4947597312 in words is "four billion, nine hundred forty-seven million, five hundred ninety-seven thousand, three hundred twelve".