278206212960 has 576 divisors, whose sum is σ = 1038263728320. Its totient is φ = 67427942400.

The previous prime is 278206212953. The next prime is 278206213003. The reversal of 278206212960 is 69212602872.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 508603407 + ... + 508603953.

It is an arithmetic number, because the mean of its divisors is an integer number (1802541195).

Almost surely, 2^278206212960 is an apocalyptic number.

278206212960 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 278206212960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (519131864160).

278206212960 is an abundant number, since it is smaller than the sum of its proper divisors (760057515360).

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

278206212960 is a wasteful number, since it uses less digits than its factorization.

278206212960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 951 (or 940 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The spelling of 278206212960 in words is "two hundred seventy-eight billion, two hundred six million, two hundred twelve thousand, nine hundred sixty".