20627355770 has 128 divisors (see below), whose sum is σ = 45287424000. Its totient is φ = 6615044352.

The previous prime is 20627355731. The next prime is 20627355779. The reversal of 20627355770 is 7755372602.

It is not an unprimeable number, because it can be changed into a prime (20627355779) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9826181 + ... + 9828279.

It is an arithmetic number, because the mean of its divisors is an integer number (353808000).

Almost surely, 2^20627355770 is an apocalyptic number.

20627355770 is an abundant number, since it is smaller than the sum of its proper divisors (24660068230).

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

20627355770 is a wasteful number, since it uses less digits than its factorization.

20627355770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2292.

The product of its (nonzero) digits is 617400, while the sum is 44.

The spelling of 20627355770 in words is "twenty billion, six hundred twenty-seven million, three hundred fifty-five thousand, seven hundred seventy".