2146764739 has 4 divisors (see below), whose sum is σ = 2453445424. Its totient is φ = 1840084056.

The previous prime is 2146764713. The next prime is 2146764769. The reversal of 2146764739 is 9374676412.

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

It is a cyclic number.

It is not a de Polignac number, because 2146764739 - 2⁵ = 2146764707 is a prime.

It is a super-2 number, since 2×2146764739² = 9217197689227476242, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2146764692 and 2146764701.

It is not an unprimeable number, because it can be changed into a prime (2146764769) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 153340332 + ... + 153340345.

It is an arithmetic number, because the mean of its divisors is an integer number (613361356).

Almost surely, 2^2146764739 is an apocalyptic number.

2146764739 is a deficient number, since it is larger than the sum of its proper divisors (306680685).

2146764739 is an equidigital number, since it uses as much as digits as its factorization.

2146764739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306680684.

The product of its digits is 1524096, while the sum is 49.

The square root of 2146764739 is about 46333.1926268847. The cubic root of 2146764739 is about 1290.0151709852.

The spelling of 2146764739 in words is "two billion, one hundred forty-six million, seven hundred sixty-four thousand, seven hundred thirty-nine".