511242705340 has 96 divisors (see below), whose sum is σ = 1107494700480. Its totient is φ = 198144460800.

The previous prime is 511242705329. The next prime is 511242705349. The reversal of 511242705340 is 43507242115.

It is a super-2 number, since 2×511242705340² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 511242705296 and 511242705305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (511242705349) 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 31 ways as a sum of consecutive naturals, for example, 91601350 + ... + 91606930.

It is an arithmetic number, because the mean of its divisors is an integer number (11536403130).

Almost surely, 2^511242705340 is an apocalyptic number.

It is an amenable number.

511242705340 is an abundant number, since it is smaller than the sum of its proper divisors (596251995140).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

511242705340 is a wasteful number, since it uses less digits than its factorization.

511242705340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6703 (or 6701 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 34.

Adding to 511242705340 its reverse (43507242115), we get a palindrome (554749947455).

The spelling of 511242705340 in words is "five hundred eleven billion, two hundred forty-two million, seven hundred five thousand, three hundred forty".