278196088120 has 64 divisors (see below), whose sum is σ = 627352761600. Its totient is φ = 111027732480.

The previous prime is 278196088103. The next prime is 278196088123. The reversal of 278196088120 is 21880691872.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (278196088123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65286790 + ... + 65291050.

It is an arithmetic number, because the mean of its divisors is an integer number (9802386900).

Almost surely, 2^278196088120 is an apocalyptic number.

278196088120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

278196088120 is an abundant number, since it is smaller than the sum of its proper divisors (349156673480).

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

278196088120 is a wasteful number, since it uses less digits than its factorization.

278196088120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7568 (or 7564 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 52.

The spelling of 278196088120 in words is "two hundred seventy-eight billion, one hundred ninety-six million, eighty-eight thousand, one hundred twenty".