20340463510 has 16 divisors (see below), whose sum is σ = 36901126656. Its totient is φ = 8072120448.

The previous prime is 20340463499. The next prime is 20340463519. The reversal of 20340463510 is 1536404302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20340463519) 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 7 ways as a sum of consecutive naturals, for example, 8006787 + ... + 8009326.

It is an arithmetic number, because the mean of its divisors is an integer number (2306320416).

Almost surely, 2^20340463510 is an apocalyptic number.

20340463510 is a deficient number, since it is larger than the sum of its proper divisors (16560663146).

20340463510 is a wasteful number, since it uses less digits than its factorization.

20340463510 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16016247.

The product of its (nonzero) digits is 8640, while the sum is 28.

Adding to 20340463510 its reverse (1536404302), we get a palindrome (21876867812).

The spelling of 20340463510 in words is "twenty billion, three hundred forty million, four hundred sixty-three thousand, five hundred ten".