614640211511 has 12 divisors (see below), whose sum is σ = 658196968800. Its totient is φ = 573577271520.

The previous prime is 614640211483. The next prime is 614640211513. The reversal of 614640211511 is 115112046416.

It is a de Polignac number, because none of the positive numbers 2^k-614640211511 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 (614640211513) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14147711 + ... + 14191088.

It is an arithmetic number, because the mean of its divisors is an integer number (54849747400).

Almost surely, 2^614640211511 is an apocalyptic number.

614640211511 is a deficient number, since it is larger than the sum of its proper divisors (43556757289).

614640211511 is a wasteful number, since it uses less digits than its factorization.

614640211511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28338886 (or 28338863 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 32.

Adding to 614640211511 its reverse (115112046416), we get a palindrome (729752257927).

The spelling of 614640211511 in words is "six hundred fourteen billion, six hundred forty million, two hundred eleven thousand, five hundred eleven".