2130377378 has 4 divisors (see below), whose sum is σ = 3195566070. Its totient is φ = 1065188688.

The previous prime is 2130377377. The next prime is 2130377399. The reversal of 2130377378 is 8737730312.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2013586129 + 116791249 = 44873^2 + 10807^2 .

It is not an unprimeable number, because it can be changed into a prime (2130377377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 532594343 + ... + 532594346.

Almost surely, 2^2130377378 is an apocalyptic number.

2130377378 is a deficient number, since it is larger than the sum of its proper divisors (1065188692).

2130377378 is a wasteful number, since it uses less digits than its factorization.

2130377378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1065188691.

The product of its (nonzero) digits is 148176, while the sum is 41.

The square root of 2130377378 is about 46156.0112878052. The cubic root of 2130377378 is about 1286.7243330874.

The spelling of 2130377378 in words is "two billion, one hundred thirty million, three hundred seventy-seven thousand, three hundred seventy-eight".