20493298046 has 64 divisors (see below), whose sum is σ = 35730616320. Its totient is φ = 8734936320.

The previous prime is 20493298043. The next prime is 20493298069. The reversal of 20493298046 is 64089239402.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20493298043) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6290450 + ... + 6293706.

It is an arithmetic number, because the mean of its divisors is an integer number (558290880).

Almost surely, 2^20493298046 is an apocalyptic number.

20493298046 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

20493298046 is a deficient number, since it is larger than the sum of its proper divisors (15237318274).

20493298046 is a wasteful number, since it uses less digits than its factorization.

20493298046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3609.

The product of its (nonzero) digits is 746496, while the sum is 47.

The spelling of 20493298046 in words is "twenty billion, four hundred ninety-three million, two hundred ninety-eight thousand, forty-six".