2137969777 has 8 divisors (see below), whose sum is σ = 2220481280. Its totient is φ = 2056304880.

The previous prime is 2137969751. The next prime is 2137969781. The reversal of 2137969777 is 7779697312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2137969777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2137969727) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 206502 + ... + 216607.

It is an arithmetic number, because the mean of its divisors is an integer number (277560160).

Almost surely, 2^2137969777 is an apocalyptic number.

It is an amenable number.

2137969777 is a deficient number, since it is larger than the sum of its proper divisors (82511503).

2137969777 is a wasteful number, since it uses less digits than its factorization.

2137969777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423303.

The product of its digits is 7001316, while the sum is 58.

The square root of 2137969777 is about 46238.1852693204. The cubic root of 2137969777 is about 1288.2510957498.

The spelling of 2137969777 in words is "two billion, one hundred thirty-seven million, nine hundred sixty-nine thousand, seven hundred seventy-seven".