190801228864 has 21 divisors (see below), whose sum is σ = 378628122981. Its totient is φ = 95398867200.

The previous prime is 190801228861. The next prime is 190801228867. The reversal of 190801228864 is 468822108091.

The square root of 190801228864 is 436808.

It is a perfect power (a square), and thus also a powerful number.

It is an interprime number because it is at equal distance from previous prime (190801228861) and next prime (190801228867).

It can be written as a sum of positive squares in only one way, i.e., 6657254464 + 184143974400 = 81592^2 + 429120^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (190801228861) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 3467164 + ... + 3521764.

Almost surely, 2^190801228864 is an apocalyptic number.

190801228864 is the 436808-th square number.

It is an amenable number.

190801228864 is a deficient number, since it is larger than the sum of its proper divisors (187826894117).

190801228864 is an frugal number, since it uses more digits than its factorization.

190801228864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109214 (or 54603 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 49.

Multiplying 190801228864 by its sum of digits (49), we get a square (9349260214336 = 3057656²).

The spelling of 190801228864 in words is "one hundred ninety billion, eight hundred one million, two hundred twenty-eight thousand, eight hundred sixty-four".