1461916859906 has 4 divisors (see below), whose sum is σ = 2192875289862. Its totient is φ = 730958429952.

The previous prime is 1461916859903. The next prime is 1461916859969. The reversal of 1461916859906 is 6099586191641.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 924934210225 + 536982649681 = 961735^2 + 732791^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1461916859903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 365479214975 + ... + 365479214978.

Almost surely, 2^{1461916859906} is an apocalyptic number.

1461916859906 is a deficient number, since it is larger than the sum of its proper divisors (730958429956).

1461916859906 is an equidigital number, since it uses as much as digits as its factorization.

1461916859906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 730958429955.

The product of its (nonzero) digits is 25194240, while the sum is 65.

The spelling of 1461916859906 in words is "one trillion, four hundred sixty-one billion, nine hundred sixteen million, eight hundred fifty-nine thousand, nine hundred six".