7409161644 has 48 divisors (see below), whose sum is σ = 18689798400. Its totient is φ = 2276496576.

The previous prime is 7409161631. The next prime is 7409161673. The reversal of 7409161644 is 4461619047.

It is a junction number, because it is equal to n+sod(n) for n = 7409161596 and 7409161605.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 430704 + ... + 447575.

It is an arithmetic number, because the mean of its divisors is an integer number (389370800).

Almost surely, 2^7409161644 is an apocalyptic number.

7409161644 is a gapful number since it is divisible by the number (74) formed by its first and last digit.

It is an amenable number.

7409161644 is an abundant number, since it is smaller than the sum of its proper divisors (11280636756).

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

7409161644 is a wasteful number, since it uses less digits than its factorization.

7409161644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 878342 (or 878340 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 7409161644 is about 86076.4871727465. The cubic root of 7409161644 is about 1949.4990292300.

The spelling of 7409161644 in words is "seven billion, four hundred nine million, one hundred sixty-one thousand, six hundred forty-four".