1928201838292 has 12 divisors (see below), whose sum is σ = 3375177666196. Its totient is φ = 963865362240.

The previous prime is 1928201838257. The next prime is 1928201838307. The reversal of 1928201838292 is 2928381028291.

It can be written as a sum of positive squares in 2 ways, for example, as 460774870416 + 1467426967876 = 678804^2 + 1211374^2 .

It is a hoax number, since the sum of its digits (55) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58870809 + ... + 58903552.

Almost surely, 2^{1928201838292} is an apocalyptic number.

It is an amenable number.

1928201838292 is a deficient number, since it is larger than the sum of its proper divisors (1446975827904).

1928201838292 is a wasteful number, since it uses less digits than its factorization.

1928201838292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117778458 (or 117778456 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 55.

The spelling of 1928201838292 in words is "one trillion, nine hundred twenty-eight billion, two hundred one million, eight hundred thirty-eight thousand, two hundred ninety-two".