101009719457 has 4 divisors (see below), whose sum is σ = 104268097536. Its totient is φ = 97751341380.

The previous prime is 101009719303. The next prime is 101009719469. The reversal of 101009719457 is 754917900101.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 101009719457 - 2²⁰ = 101008670881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101009719957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1629188993 + ... + 1629189054.

It is an arithmetic number, because the mean of its divisors is an integer number (26067024384).

Almost surely, 2^101009719457 is an apocalyptic number.

It is an amenable number.

101009719457 is a deficient number, since it is larger than the sum of its proper divisors (3258378079).

101009719457 is an equidigital number, since it uses as much as digits as its factorization.

101009719457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3258378078.

The product of its (nonzero) digits is 79380, while the sum is 44.

The spelling of 101009719457 in words is "one hundred one billion, nine million, seven hundred nineteen thousand, four hundred fifty-seven".