20311763077 has 8 divisors (see below), whose sum is σ = 20358196992. Its totient is φ = 20265366000.

The previous prime is 20311763051. The next prime is 20311763107. The reversal of 20311763077 is 77036711302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20311763077 - 2¹⁹ = 20311238789 is a prime.

It is a super-3 number, since 3×20311763077³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20311763677) 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 7 ways as a sum of consecutive naturals, for example, 1301752 + ... + 1317262.

It is an arithmetic number, because the mean of its divisors is an integer number (2544774624).

Almost surely, 2^20311763077 is an apocalyptic number.

It is an amenable number.

20311763077 is a deficient number, since it is larger than the sum of its proper divisors (46433915).

20311763077 is a wasteful number, since it uses less digits than its factorization.

20311763077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18419.

The product of its (nonzero) digits is 37044, while the sum is 37.

The spelling of 20311763077 in words is "twenty billion, three hundred eleven million, seven hundred sixty-three thousand, seventy-seven".