20227478700 has 144 divisors (see below), whose sum is σ = 68756599296. Its totient is φ = 4526419200.

The previous prime is 20227478693. The next prime is 20227478723. The reversal of 20227478700 is 787472202.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 192852 + ... + 278651.

It is an arithmetic number, because the mean of its divisors is an integer number (477476384).

Almost surely, 2^20227478700 is an apocalyptic number.

20227478700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20227478700 is an abundant number, since it is smaller than the sum of its proper divisors (48529120596).

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

20227478700 is a wasteful number, since it uses less digits than its factorization.

20227478700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471544 (or 471537 counting only the distinct ones).

The product of its (nonzero) digits is 87808, while the sum is 39.

The spelling of 20227478700 in words is "twenty billion, two hundred twenty-seven million, four hundred seventy-eight thousand, seven hundred".