20767352493 has 16 divisors (see below), whose sum is σ = 27810184256. Its totient is φ = 13784791680.

The previous prime is 20767352479. The next prime is 20767352503. The reversal of 20767352493 is 39425376702.

It is not a de Polignac number, because 20767352493 - 2¹⁰ = 20767351469 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20767352413) 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 in 15 ways as a sum of consecutive naturals, for example, 1112271 + ... + 1130787.

It is an arithmetic number, because the mean of its divisors is an integer number (1738136516).

Almost surely, 2^20767352493 is an apocalyptic number.

It is an amenable number.

20767352493 is a deficient number, since it is larger than the sum of its proper divisors (7042831763).

20767352493 is a wasteful number, since it uses less digits than its factorization.

20767352493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20124.

The product of its (nonzero) digits is 1905120, while the sum is 48.

The spelling of 20767352493 in words is "twenty billion, seven hundred sixty-seven million, three hundred fifty-two thousand, four hundred ninety-three".