20749493362 has 16 divisors (see below), whose sum is σ = 35282540160. Its totient is φ = 9072652752.

The previous prime is 20749493353. The next prime is 20749493363. The reversal of 20749493362 is 26339494702.

It is not an unprimeable number, because it can be changed into a prime (20749493363) 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, 21001018 + ... + 21002005.

It is an arithmetic number, because the mean of its divisors is an integer number (2205158760).

Almost surely, 2^20749493362 is an apocalyptic number.

20749493362 is a deficient number, since it is larger than the sum of its proper divisors (14533046798).

20749493362 is a wasteful number, since it uses less digits than its factorization.

20749493362 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42003057.

The product of its (nonzero) digits is 1959552, while the sum is 49.

The spelling of 20749493362 in words is "twenty billion, seven hundred forty-nine million, four hundred ninety-three thousand, three hundred sixty-two".