20049677803 has 2 divisors, whose sum is σ = 20049677804. Its totient is φ = 20049677802.

The previous prime is 20049677797. The next prime is 20049677839. The reversal of 20049677803 is 30877694002.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20049677803 is a prime.

It is a super-2 number, since 2×20049677803² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20049677863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10024838901 + 10024838902.

It is an arithmetic number, because the mean of its divisors is an integer number (10024838902).

Almost surely, 2^20049677803 is an apocalyptic number.

20049677803 is a deficient number, since it is larger than the sum of its proper divisors (1).

20049677803 is an equidigital number, since it uses as much as digits as its factorization.

20049677803 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 508032, while the sum is 46.

The spelling of 20049677803 in words is "twenty billion, forty-nine million, six hundred seventy-seven thousand, eight hundred three".