1461991696 has 75 divisors (see below), whose sum is σ = 3155790855. Its totient is φ = 656129760.

The previous prime is 1461991691. The next prime is 1461991717. The reversal of 1461991696 is 6961991641.

The square root of 1461991696 is 38236.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1461991691) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 18506185 + ... + 18506263.

Almost surely, 2^1461991696 is an apocalyptic number.

1461991696 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

1461991696 is the 38236-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1461991696

1461991696 is an abundant number, since it is smaller than the sum of its proper divisors (1693799159).

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

1461991696 is an frugal number, since it uses more digits than its factorization.

1461991696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210 (or 92 counting only the distinct ones).

The product of its digits is 629856, while the sum is 52.

The cubic root of 1461991696 is about 1134.9628212705.

Subtracting 1461991696 from its reverse (6961991641), we obtain a palindrome (5499999945).

The spelling of 1461991696 in words is "one billion, four hundred sixty-one million, nine hundred ninety-one thousand, six hundred ninety-six".