278094537420 has 192 divisors, whose sum is σ = 893138835456. Its totient is φ = 63333826560.

The previous prime is 278094537401. The next prime is 278094537421. The reversal of 278094537420 is 24735490872.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (278094537421) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 241191564 + ... + 241192716.

It is an arithmetic number, because the mean of its divisors is an integer number (4651764768).

Almost surely, 2^278094537420 is an apocalyptic number.

278094537420 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 278094537420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (446569417728).

278094537420 is an abundant number, since it is smaller than the sum of its proper divisors (615044298036).

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

278094537420 is a wasteful number, since it uses less digits than its factorization.

278094537420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2760 (or 2758 counting only the distinct ones).

The product of its (nonzero) digits is 3386880, while the sum is 51.

The spelling of 278094537420 in words is "two hundred seventy-eight billion, ninety-four million, five hundred thirty-seven thousand, four hundred twenty".