1434807187661 has 2 divisors, whose sum is σ = 1434807187662. Its totient is φ = 1434807187660.

The previous prime is 1434807187609. The next prime is 1434807187679. The reversal of 1434807187661 is 1667817084341.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1192540441225 + 242266746436 = 1092035^2 + 492206^2 .

It is a cyclic number.

It is not a de Polignac number, because 1434807187661 - 2¹⁴ = 1434807171277 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1434807187597 and 1434807187606.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1434807187601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 717403593830 + 717403593831.

It is an arithmetic number, because the mean of its divisors is an integer number (717403593831).

Almost surely, 2^{1434807187661} is an apocalyptic number.

It is an amenable number.

1434807187661 is a deficient number, since it is larger than the sum of its proper divisors (1).

1434807187661 is an equidigital number, since it uses as much as digits as its factorization.

1434807187661 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5419008, while the sum is 56.

The spelling of 1434807187661 in words is "one trillion, four hundred thirty-four billion, eight hundred seven million, one hundred eighty-seven thousand, six hundred sixty-one".