2878420900791 has 8 divisors (see below), whose sum is σ = 4004759514240. Its totient is φ = 1835514777272.

The previous prime is 2878420900759. The next prime is 2878420900829. The reversal of 2878420900791 is 1970090248782.

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

It is a cyclic number.

It is not a de Polignac number, because 2878420900791 - 2⁵ = 2878420900759 is a prime.

It is a super-2 number, since 2×2878420900791² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2878420900391) 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, 20858122401 + ... + 20858122538.

It is an arithmetic number, because the mean of its divisors is an integer number (500594939280).

Almost surely, 2^{2878420900791} is an apocalyptic number.

2878420900791 is a deficient number, since it is larger than the sum of its proper divisors (1126338613449).

2878420900791 is a wasteful number, since it uses less digits than its factorization.

2878420900791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41716244965.

The product of its (nonzero) digits is 4064256, while the sum is 57.

The spelling of 2878420900791 in words is "two trillion, eight hundred seventy-eight billion, four hundred twenty million, nine hundred thousand, seven hundred ninety-one".