2878379961 has 8 divisors (see below), whose sum is σ = 3941565504. Its totient is φ = 1867057200.

The previous prime is 2878379927. The next prime is 2878379983. The reversal of 2878379961 is 1699738782.

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

It is not a de Polignac number, because 2878379961 - 2¹¹ = 2878377913 is a prime.

It is a super-3 number, since 3×2878379961³ (a number of 29 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2878379895 and 2878379904.

It is not an unprimeable number, because it can be changed into a prime (2878379461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12965565 + ... + 12965786.

It is an arithmetic number, because the mean of its divisors is an integer number (492695688).

Almost surely, 2^2878379961 is an apocalyptic number.

It is an amenable number.

2878379961 is a deficient number, since it is larger than the sum of its proper divisors (1063185543).

2878379961 is a wasteful number, since it uses less digits than its factorization.

2878379961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25931391.

The product of its digits is 9144576, while the sum is 60.

The square root of 2878379961 is about 53650.5355145687. The cubic root of 2878379961 is about 1422.4904983392.

The spelling of 2878379961 in words is "two billion, eight hundred seventy-eight million, three hundred seventy-nine thousand, nine hundred sixty-one".