1061812648 has 32 divisors (see below), whose sum is σ = 2145427200. Its totient is φ = 489751488.

The previous prime is 1061812637. The next prime is 1061812649. The reversal of 1061812648 is 8462181601.

It is a super-2 number, since 2×1061812648² = 2254892198905543808, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1061812649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 258273 + ... + 262351.

It is an arithmetic number, because the mean of its divisors is an integer number (67044600).

Almost surely, 2^1061812648 is an apocalyptic number.

It is an amenable number.

1061812648 is an abundant number, since it is smaller than the sum of its proper divisors (1083614552).

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

1061812648 is a wasteful number, since it uses less digits than its factorization.

1061812648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6601 (or 6597 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 37.

The square root of 1061812648 is about 32585.4668218824. The cubic root of 1061812648 is about 1020.1936861460.

The spelling of 1061812648 in words is "one billion, sixty-one million, eight hundred twelve thousand, six hundred forty-eight".