1612724287 has 4 divisors (see below), whose sum is σ = 1624326760. Its totient is φ = 1601121816.

The previous prime is 1612724263. The next prime is 1612724293. The reversal of 1612724287 is 7824272161.

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

It is a cyclic number.

It is not a de Polignac number, because 1612724287 - 2¹⁹ = 1612199999 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 (1612724987) 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, 5801028 + ... + 5801305.

It is an arithmetic number, because the mean of its divisors is an integer number (406081690).

Almost surely, 2^1612724287 is an apocalyptic number.

1612724287 is a deficient number, since it is larger than the sum of its proper divisors (11602473).

1612724287 is a wasteful number, since it uses less digits than its factorization.

1612724287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11602472.

The product of its digits is 75264, while the sum is 40.

The square root of 1612724287 is about 40158.7386131587. The cubic root of 1612724287 is about 1172.6994157117.

The spelling of 1612724287 in words is "one billion, six hundred twelve million, seven hundred twenty-four thousand, two hundred eighty-seven".