1712231411561 has 4 divisors (see below), whose sum is σ = 1867888812624. Its totient is φ = 1556574010500.

The previous prime is 1712231411519. The next prime is 1712231411567. The reversal of 1712231411561 is 1651141322171.

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 1712231411561 - 2⁶ = 1712231411497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1712231411567) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77828700515 + ... + 77828700536.

It is an arithmetic number, because the mean of its divisors is an integer number (466972203156).

Almost surely, 2^{1712231411561} is an apocalyptic number.

1712231411561 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1712231411561 is a deficient number, since it is larger than the sum of its proper divisors (155657401063).

1712231411561 is a wasteful number, since it uses less digits than its factorization.

1712231411561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155657401062.

The product of its digits is 10080, while the sum is 35.

The spelling of 1712231411561 in words is "one trillion, seven hundred twelve billion, two hundred thirty-one million, four hundred eleven thousand, five hundred sixty-one".