20249097046 has 4 divisors (see below), whose sum is σ = 30373645572. Its totient is φ = 10124548522.

The previous prime is 20249097017. The next prime is 20249097047. The reversal of 20249097046 is 64079094202.

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

It is a super-2 number, since 2×20249097046² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20249096993 and 20249097011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20249097047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5062274260 + ... + 5062274263.

It is an arithmetic number, because the mean of its divisors is an integer number (7593411393).

Almost surely, 2^20249097046 is an apocalyptic number.

20249097046 is a deficient number, since it is larger than the sum of its proper divisors (10124548526).

20249097046 is a wasteful number, since it uses less digits than its factorization.

20249097046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10124548525.

The product of its (nonzero) digits is 217728, while the sum is 43.

The spelling of 20249097046 in words is "twenty billion, two hundred forty-nine million, ninety-seven thousand, forty-six".