201980270028 has 18 divisors (see below), whose sum is σ = 471290929396. Its totient is φ = 67326237728.

The previous prime is 201980270017. The next prime is 201980270039. The reversal of 201980270028 is 820072089102.

It is an interprime number because it is at equal distance from previous prime (201980270017) and next prime (201980270039).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1491976 + ... + 1621712.

Almost surely, 2^201980270028 is an apocalyptic number.

It is an amenable number.

201980270028 is an abundant number, since it is smaller than the sum of its proper divisors (269310659368).

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

201980270028 is an frugal number, since it uses more digits than its factorization.

201980270028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259481 (or 129742 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 39.

The spelling of 201980270028 in words is "two hundred one billion, nine hundred eighty million, two hundred seventy thousand, twenty-eight".