61493454001 has 40 divisors (see below), whose sum is σ = 75647167200. Its totient is φ = 49846406400.

The previous prime is 61493453969. The next prime is 61493454013. The reversal of 61493454001 is 10045439416.

It is not a de Polignac number, because 61493454001 - 2⁵ = 61493453969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61493484001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 42379326 + ... + 42380776.

It is an arithmetic number, because the mean of its divisors is an integer number (1891179180).

Almost surely, 2^61493454001 is an apocalyptic number.

It is an amenable number.

61493454001 is a deficient number, since it is larger than the sum of its proper divisors (14153713199).

61493454001 is an equidigital number, since it uses as much as digits as its factorization.

61493454001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2427 (or 2406 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 37.

The spelling of 61493454001 in words is "sixty-one billion, four hundred ninety-three million, four hundred fifty-four thousand, one".