20077393505 has 48 divisors (see below), whose sum is σ = 27037292544. Its totient is φ = 14291147520.

The previous prime is 20077393493. The next prime is 20077393507. The reversal of 20077393505 is 50539377002.

It is not a de Polignac number, because 20077393505 - 2⁴ = 20077393489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20077393507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7254632 + ... + 7257398.

It is an arithmetic number, because the mean of its divisors is an integer number (563276928).

Almost surely, 2^20077393505 is an apocalyptic number.

It is an amenable number.

20077393505 is a deficient number, since it is larger than the sum of its proper divisors (6959899039).

20077393505 is a wasteful number, since it uses less digits than its factorization.

20077393505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3106 (or 3093 counting only the distinct ones).

The product of its (nonzero) digits is 198450, while the sum is 41.

The spelling of 20077393505 in words is "twenty billion, seventy-seven million, three hundred ninety-three thousand, five hundred five".