1951852648 has 16 divisors (see below), whose sum is σ = 3662197380. Its totient is φ = 975266688.

The previous prime is 1951852631. The next prime is 1951852667. The reversal of 1951852648 is 8462581591.

It can be written as a sum of positive squares in 2 ways, for example, as 1941107364 + 10745284 = 44058^2 + 3278^2 .

It is a super-2 number, since 2×1951852648² = 7619457519009223808, which contains 22 as substring.

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, 69765 + ... + 93652.

Almost surely, 2^1951852648 is an apocalyptic number.

It is an amenable number.

1951852648 is a deficient number, since it is larger than the sum of its proper divisors (1710344732).

1951852648 is a wasteful number, since it uses less digits than its factorization.

1951852648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164916 (or 164912 counting only the distinct ones).

The product of its digits is 691200, while the sum is 49.

The square root of 1951852648 is about 44179.7764593711. The cubic root of 1951852648 is about 1249.7285059437.

The spelling of 1951852648 in words is "one billion, nine hundred fifty-one million, eight hundred fifty-two thousand, six hundred forty-eight".