1742991461 has 4 divisors (see below), whose sum is σ = 1799217024. Its totient is φ = 1686765900.

The previous prime is 1742991403. The next prime is 1742991469. The reversal of 1742991461 is 1641992471.

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 1742991461 - 2¹⁰ = 1742990437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1742991469) 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, 28112735 + ... + 28112796.

It is an arithmetic number, because the mean of its divisors is an integer number (449804256).

Almost surely, 2^1742991461 is an apocalyptic number.

It is an amenable number.

1742991461 is a deficient number, since it is larger than the sum of its proper divisors (56225563).

1742991461 is an equidigital number, since it uses as much as digits as its factorization.

1742991461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56225562.

The product of its digits is 108864, while the sum is 44.

The square root of 1742991461 is about 41749.1492248645. The cubic root of 1742991461 is about 1203.4602581891.

The spelling of 1742991461 in words is "one billion, seven hundred forty-two million, nine hundred ninety-one thousand, four hundred sixty-one".