2878326400870 has 16 divisors (see below), whose sum is σ = 5183792637408. Its totient is φ = 1150707201280.

The previous prime is 2878326400811. The next prime is 2878326400871. The reversal of 2878326400870 is 780046238782.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2878326400871) 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, 77900491 + ... + 77937430.

It is an arithmetic number, because the mean of its divisors is an integer number (323987039838).

Almost surely, 2^{2878326400870} is an apocalyptic number.

2878326400870 is a deficient number, since it is larger than the sum of its proper divisors (2305466236538).

2878326400870 is a wasteful number, since it uses less digits than its factorization.

2878326400870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155839775.

The product of its (nonzero) digits is 7225344, while the sum is 55.

The spelling of 2878326400870 in words is "two trillion, eight hundred seventy-eight billion, three hundred twenty-six million, four hundred thousand, eight hundred seventy".