20740494914 has 4 divisors (see below), whose sum is σ = 31110742374. Its totient is φ = 10370247456.

The previous prime is 20740494877. The next prime is 20740494917. The reversal of 20740494914 is 41949404702.

It is a happy number.

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., 14502180625 + 6238314289 = 120425^2 + 78983^2 .

It is not an unprimeable number, because it can be changed into a prime (20740494917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5185123727 + ... + 5185123730.

Almost surely, 2^20740494914 is an apocalyptic number.

20740494914 is a deficient number, since it is larger than the sum of its proper divisors (10370247460).

20740494914 is a wasteful number, since it uses less digits than its factorization.

20740494914 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10370247459.

The product of its (nonzero) digits is 290304, while the sum is 44.

The spelling of 20740494914 in words is "twenty billion, seven hundred forty million, four hundred ninety-four thousand, nine hundred fourteen".