2154154880 has 32 divisors (see below), whose sum is σ = 5149778040. Its totient is φ = 861661696.

The previous prime is 2154154879. The next prime is 2154154897. The reversal of 2154154880 is 884514512.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1682294 + ... + 1683573.

Almost surely, 2^2154154880 is an apocalyptic number.

2154154880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2154154880 is an abundant number, since it is smaller than the sum of its proper divisors (2995623160).

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

2154154880 is an equidigital number, since it uses as much as digits as its factorization.

2154154880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3365886 (or 3365874 counting only the distinct ones).

The product of its (nonzero) digits is 51200, while the sum is 38.

The square root of 2154154880 is about 46412.8740760578. The cubic root of 2154154880 is about 1291.4937486917.

The spelling of 2154154880 in words is "two billion, one hundred fifty-four million, one hundred fifty-four thousand, eight hundred eighty".