1712157072434 has 4 divisors (see below), whose sum is σ = 2568235608654. Its totient is φ = 856078536216.

The previous prime is 1712157072401. The next prime is 1712157072467. The reversal of 1712157072434 is 4342707512171.

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

It is an interprime number because it is at equal distance from previous prime (1712157072401) and next prime (1712157072467).

It can be written as a sum of positive squares in only one way, i.e., 1712028318025 + 128754409 = 1308445^2 + 11347^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 428039268107 + ... + 428039268110.

Almost surely, 2^{1712157072434} is an apocalyptic number.

1712157072434 is a deficient number, since it is larger than the sum of its proper divisors (856078536220).

1712157072434 is an equidigital number, since it uses as much as digits as its factorization.

1712157072434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 856078536219.

The product of its (nonzero) digits is 329280, while the sum is 44.

The spelling of 1712157072434 in words is "one trillion, seven hundred twelve billion, one hundred fifty-seven million, seventy-two thousand, four hundred thirty-four".