279049085891040 has 384 divisors, whose sum is σ = 913198602645504. Its totient is φ = 71549798400000.

The previous prime is 279049085890957. The next prime is 279049085891119. The reversal of 279049085891040 is 40198580940972.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4044096540 + ... + 4044165540.

It is an arithmetic number, because the mean of its divisors is an integer number (2378121361056).

Almost surely, 2^{279049085891040} is an apocalyptic number.

279049085891040 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 279049085891040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (456599301322752).

279049085891040 is an abundant number, since it is smaller than the sum of its proper divisors (634149516754464).

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

279049085891040 is a wasteful number, since it uses less digits than its factorization.

279049085891040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70794 (or 70786 counting only the distinct ones).

The product of its (nonzero) digits is 52254720, while the sum is 66.

The spelling of 279049085891040 in words is "two hundred seventy-nine trillion, forty-nine billion, eighty-five million, eight hundred ninety-one thousand, forty".