52778142000 has 560 divisors, whose sum is σ = 195234388128. Its totient is φ = 13788403200.

The previous prime is 52778141971. The next prime is 52778142017. The reversal of 52778142000 is 24187725.

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 111 ways as a sum of consecutive naturals, for example, 77273659 + ... + 77274341.

Almost surely, 2^52778142000 is an apocalyptic number.

52778142000 is a gapful number since it is divisible by the number (50) 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 52778142000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97617194064).

52778142000 is an abundant number, since it is smaller than the sum of its proper divisors (142456246128).

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

52778142000 is an equidigital number, since it uses as much as digits as its factorization.

52778142000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 777 (or 746 counting only the distinct ones).

The product of its (nonzero) digits is 31360, while the sum is 36.

The spelling of 52778142000 in words is "fifty-two billion, seven hundred seventy-eight million, one hundred forty-two thousand".