4978101532278 has 96 divisors (see below), whose sum is σ = 11812358027520. Its totient is φ = 1398206023200.

The previous prime is 4978101532277. The next prime is 4978101532321. The reversal of 4978101532278 is 8722351018794.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4978101532277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5531328 + ... + 6368028.

It is an arithmetic number, because the mean of its divisors is an integer number (123045396120).

Almost surely, 2^{4978101532278} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4978101532278, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5906179013760).

4978101532278 is an abundant number, since it is smaller than the sum of its proper divisors (6834256495242).

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

4978101532278 is an frugal number, since it uses more digits than its factorization.

4978101532278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 836800 (or 836772 counting only the distinct ones).

The product of its (nonzero) digits is 6773760, while the sum is 57.

The spelling of 4978101532278 in words is "four trillion, nine hundred seventy-eight billion, one hundred one million, five hundred thirty-two thousand, two hundred seventy-eight".