2054155870 has 16 divisors (see below), whose sum is σ = 3981902400. Its totient is φ = 758457504.

The previous prime is 2054155861. The next prime is 2054155889. The reversal of 2054155870 is 785514502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7900470 + ... + 7900729.

It is an arithmetic number, because the mean of its divisors is an integer number (248868900).

Almost surely, 2^2054155870 is an apocalyptic number.

2054155870 is a deficient number, since it is larger than the sum of its proper divisors (1927746530).

2054155870 is a wasteful number, since it uses less digits than its factorization.

2054155870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15801219.

The product of its (nonzero) digits is 56000, while the sum is 37.

The square root of 2054155870 is about 45322.7963612132. The cubic root of 2054155870 is about 1271.1919431523.

The spelling of 2054155870 in words is "two billion, fifty-four million, one hundred fifty-five thousand, eight hundred seventy".