2878751401 has 4 divisors (see below), whose sum is σ = 2945699152. Its totient is φ = 2811803652.

The previous prime is 2878751399. The next prime is 2878751417. The reversal of 2878751401 is 1041578782.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2878751401 - 2¹ = 2878751399 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43), and also a Moran number because the ratio is a prime number: 66947707 = 2878751401 / (2 + 8 + 7 + 8 + 7 + 5 + 1 + 4 + 0 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2878751431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33473811 + ... + 33473896.

It is an arithmetic number, because the mean of its divisors is an integer number (736424788).

Almost surely, 2^2878751401 is an apocalyptic number.

It is an amenable number.

2878751401 is a deficient number, since it is larger than the sum of its proper divisors (66947751).

2878751401 is an equidigital number, since it uses as much as digits as its factorization.

2878751401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66947750.

The product of its (nonzero) digits is 125440, while the sum is 43.

The square root of 2878751401 is about 53653.9970645245. The cubic root of 2878751401 is about 1422.5516840468.

The spelling of 2878751401 in words is "two billion, eight hundred seventy-eight million, seven hundred fifty-one thousand, four hundred one".