190200771450 has 36 divisors (see below), whose sum is σ = 511006073838. Its totient is φ = 50720205600.

The previous prime is 190200771443. The next prime is 190200771473. The reversal of 190200771450 is 54177002091.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 119960400609 + 70240370841 = 346353^2 + 265029^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 211333741 + ... + 211334640.

Almost surely, 2^190200771450 is an apocalyptic number.

190200771450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

190200771450 is an abundant number, since it is smaller than the sum of its proper divisors (320805302388).

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

190200771450 is a wasteful number, since it uses less digits than its factorization.

190200771450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422668399 (or 422668391 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 36.

The spelling of 190200771450 in words is "one hundred ninety billion, two hundred million, seven hundred seventy-one thousand, four hundred fifty".