1641648488 has 32 divisors (see below), whose sum is σ = 3247708800. Its totient is φ = 775795968.

The previous prime is 1641648479. The next prime is 1641648497. The reversal of 1641648488 is 8848461461.

It is an interprime number because it is at equal distance from previous prime (1641648479) and next prime (1641648497).

It is a super-2 number, since 2×1641648488² = 5390019516305372288, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53345 + ... + 78287.

It is an arithmetic number, because the mean of its divisors is an integer number (101490900).

Almost surely, 2^1641648488 is an apocalyptic number.

It is an amenable number.

1641648488 is a deficient number, since it is larger than the sum of its proper divisors (1606060312).

1641648488 is a wasteful number, since it uses less digits than its factorization.

1641648488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25401 (or 25397 counting only the distinct ones).

The product of its digits is 1179648, while the sum is 50.

The square root of 1641648488 is about 40517.2616053948. The cubic root of 1641648488 is about 1179.6687014005.

The spelling of 1641648488 in words is "one billion, six hundred forty-one million, six hundred forty-eight thousand, four hundred eighty-eight".