2878258055140 has 48 divisors (see below), whose sum is σ = 6851885584320. Its totient is φ = 1006807674240.

The previous prime is 2878258055059. The next prime is 2878258055143. The reversal of 2878258055140 is 415508528782.

It is not an unprimeable number, because it can be changed into a prime (2878258055143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 291316726 + ... + 291326605.

It is an arithmetic number, because the mean of its divisors is an integer number (142747616340).

Almost surely, 2^{2878258055140} is an apocalyptic number.

2878258055140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2878258055140 is an abundant number, since it is smaller than the sum of its proper divisors (3973627529180).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2878258055140 is a wasteful number, since it uses less digits than its factorization.

2878258055140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 582643372 (or 582643370 counting only the distinct ones).

The product of its (nonzero) digits is 7168000, while the sum is 55.

The spelling of 2878258055140 in words is "two trillion, eight hundred seventy-eight billion, two hundred fifty-eight million, fifty-five thousand, one hundred forty".