20513049627 has 8 divisors (see below), whose sum is σ = 31257980416. Its totient is φ = 11721742632.

The previous prime is 20513049589. The next prime is 20513049637. The reversal of 20513049627 is 72694031502.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20513049627 - 2⁷ = 20513049499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20513049637) 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, 488405923 + ... + 488405964.

It is an arithmetic number, because the mean of its divisors is an integer number (3907247552).

Almost surely, 2^20513049627 is an apocalyptic number.

20513049627 is a deficient number, since it is larger than the sum of its proper divisors (10744930789).

20513049627 is an equidigital number, since it uses as much as digits as its factorization.

20513049627 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 976811897.

The product of its (nonzero) digits is 90720, while the sum is 39.

The spelling of 20513049627 in words is "twenty billion, five hundred thirteen million, forty-nine thousand, six hundred twenty-seven".