201137800028 has 36 divisors (see below), whose sum is σ = 387487078440. Its totient is φ = 91287393120.

The previous prime is 201137800027. The next prime is 201137800033. The reversal of 201137800028 is 820008731102.

It is a junction number, because it is equal to n+sod(n) for n = 201137799967 and 201137800003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201137800027) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3650 + ... + 634262.

Almost surely, 2^201137800028 is an apocalyptic number.

It is an amenable number.

201137800028 is a deficient number, since it is larger than the sum of its proper divisors (186349278412).

201137800028 is a wasteful number, since it uses less digits than its factorization.

201137800028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 631298 (or 631285 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 32.

The spelling of 201137800028 in words is "two hundred one billion, one hundred thirty-seven million, eight hundred thousand, twenty-eight".