2778030528000 has 2560 divisors, whose sum is σ = 12299500781568. Its totient is φ = 540131328000.

The previous prime is 2778030527999. The next prime is 2778030528011. The reversal of 2778030528000 is 8250308772.

It is a tau number, because it is divible by the number of its divisors (2560).

It is a super-2 number, since 2×2778030528000² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 12457535889 + ... + 12457536111.

Almost surely, 2^{2778030528000} is an apocalyptic number.

2778030528000 is a gapful number since it is divisible by the number (20) 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 2778030528000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6149750390784).

2778030528000 is an abundant number, since it is smaller than the sum of its proper divisors (9521470253568).

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

2778030528000 is a wasteful number, since it uses less digits than its factorization.

2778030528000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333 (or 307 counting only the distinct ones).

The product of its (nonzero) digits is 188160, while the sum is 42.

The spelling of 2778030528000 in words is "two trillion, seven hundred seventy-eight billion, thirty million, five hundred twenty-eight thousand".