52878177408 has 384 divisors, whose sum is σ = 174596843520. Its totient is φ = 13879885824.

The previous prime is 52878177397. The next prime is 52878177419. The reversal of 52878177408 is 80477187825.

It is an interprime number because it is at equal distance from previous prime (52878177397) and next prime (52878177419).

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

It is a super-2 number, since 2×52878177408² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 33402985 + ... + 33404567.

It is an arithmetic number, because the mean of its divisors is an integer number (454679280).

Almost surely, 2^52878177408 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 52878177408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87298421760).

52878177408 is an abundant number, since it is smaller than the sum of its proper divisors (121718666112).

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

52878177408 is a wasteful number, since it uses less digits than its factorization.

52878177408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1684 (or 1655 counting only the distinct ones).

The product of its (nonzero) digits is 7024640, while the sum is 57.

The spelling of 52878177408 in words is "fifty-two billion, eight hundred seventy-eight million, one hundred seventy-seven thousand, four hundred eight".