20749349514 has 8 divisors (see below), whose sum is σ = 41498699040. Its totient is φ = 6916449836.

The previous prime is 20749349503. The next prime is 20749349521. The reversal of 20749349514 is 41594394702.

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

20749349514 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1729112454 + ... + 1729112465.

It is an arithmetic number, because the mean of its divisors is an integer number (5187337380).

Almost surely, 2^20749349514 is an apocalyptic number.

20749349514 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20749349514 is a wasteful number, since it uses less digits than its factorization.

20749349514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3458224924.

The product of its (nonzero) digits is 1088640, while the sum is 48.

The spelling of 20749349514 in words is "twenty billion, seven hundred forty-nine million, three hundred forty-nine thousand, five hundred fourteen".