1952798866 has 4 divisors (see below), whose sum is σ = 2929198302. Its totient is φ = 976399432.

The previous prime is 1952798807. The next prime is 1952798909. The reversal of 1952798866 is 6688972591.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1611621025 + 341177841 = 40145^2 + 18471^2 .

It is a super-2 number, since 2×1952798866² = 7626846822101771912, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 488199715 + ... + 488199718.

Almost surely, 2^1952798866 is an apocalyptic number.

1952798866 is a deficient number, since it is larger than the sum of its proper divisors (976399436).

1952798866 is an equidigital number, since it uses as much as digits as its factorization.

1952798866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 976399435.

The product of its digits is 13063680, while the sum is 61.

The square root of 1952798866 is about 44190.4838851081. The cubic root of 1952798866 is about 1249.9304208737.

The spelling of 1952798866 in words is "one billion, nine hundred fifty-two million, seven hundred ninety-eight thousand, eight hundred sixty-six".