1461681376 has 12 divisors (see below), whose sum is σ = 2877685272. Its totient is φ = 730840672.

The previous prime is 1461681371. The next prime is 1461681379. The reversal of 1461681376 is 6731861641.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1461681371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22838740 + ... + 22838803.

It is an arithmetic number, because the mean of its divisors is an integer number (239807106).

Almost surely, 2^1461681376 is an apocalyptic number.

1461681376 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1461681376 is a deficient number, since it is larger than the sum of its proper divisors (1416003896).

1461681376 is an equidigital number, since it uses as much as digits as its factorization.

1461681376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45677553 (or 45677545 counting only the distinct ones).

The product of its digits is 145152, while the sum is 43.

The square root of 1461681376 is about 38231.9418287902. The cubic root of 1461681376 is about 1134.8825137954.

The spelling of 1461681376 in words is "one billion, four hundred sixty-one million, six hundred eighty-one thousand, three hundred seventy-six".