279978241461 has 8 divisors (see below), whose sum is σ = 392951917920. Its totient is φ = 176828362992.

The previous prime is 279978241429. The next prime is 279978241493. The reversal of 279978241461 is 164142879972.

It is an interprime number because it is at equal distance from previous prime (279978241429) and next prime (279978241493).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 279978241461 - 2⁵ = 279978241429 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 279978241395 and 279978241404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (279978241061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2455949430 + ... + 2455949543.

It is an arithmetic number, because the mean of its divisors is an integer number (49118989740).

Almost surely, 2^279978241461 is an apocalyptic number.

It is an amenable number.

279978241461 is a deficient number, since it is larger than the sum of its proper divisors (112973676459).

279978241461 is a wasteful number, since it uses less digits than its factorization.

279978241461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4911898995.

The product of its digits is 12192768, while the sum is 60.

The spelling of 279978241461 in words is "two hundred seventy-nine billion, nine hundred seventy-eight million, two hundred forty-one thousand, four hundred sixty-one".