2167781048 has 8 divisors (see below), whose sum is σ = 4064589480. Its totient is φ = 1083890520.

The previous prime is 2167781023. The next prime is 2167781053. The reversal of 2167781048 is 8401877612.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 135486308 + ... + 135486323.

It is an arithmetic number, because the mean of its divisors is an integer number (508073685).

Almost surely, 2^2167781048 is an apocalyptic number.

It is an amenable number.

2167781048 is a deficient number, since it is larger than the sum of its proper divisors (1896808432).

2167781048 is a wasteful number, since it uses less digits than its factorization.

2167781048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270972637 (or 270972633 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 44.

The square root of 2167781048 is about 46559.4356495007. The cubic root of 2167781048 is about 1294.2111538667.

The spelling of 2167781048 in words is "two billion, one hundred sixty-seven million, seven hundred eighty-one thousand, forty-eight".