20628814514 has 16 divisors (see below), whose sum is σ = 38578562496. Its totient is φ = 8037200400.

The previous prime is 20628814489. The next prime is 20628814519. The reversal of 20628814514 is 41541882602.

It is not an unprimeable number, because it can be changed into a prime (20628814519) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66976517 + ... + 66976824.

It is an arithmetic number, because the mean of its divisors is an integer number (2411160156).

Almost surely, 2^20628814514 is an apocalyptic number.

20628814514 is a deficient number, since it is larger than the sum of its proper divisors (17949747982).

20628814514 is a wasteful number, since it uses less digits than its factorization.

20628814514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133953361.

The product of its (nonzero) digits is 122880, while the sum is 41.

The spelling of 20628814514 in words is "twenty billion, six hundred twenty-eight million, eight hundred fourteen thousand, five hundred fourteen".