8157774465545 has 8 divisors (see below), whose sum is σ = 9789349011840. Its totient is φ = 6526206470320.

The previous prime is 8157774465499. The next prime is 8157774465563. The reversal of 8157774465545 is 5455644777518.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 8157774465545 - 2⁸ = 8157774465289 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1732190 + ... + 4395000.

It is an arithmetic number, because the mean of its divisors is an integer number (1223668626480).

Almost surely, 2^{8157774465545} is an apocalyptic number.

It is an amenable number.

8157774465545 is a deficient number, since it is larger than the sum of its proper divisors (1631574546295).

8157774465545 is a wasteful number, since it uses less digits than its factorization.

8157774465545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3275535.

The product of its digits is 658560000, while the sum is 68.

The spelling of 8157774465545 in words is "eight trillion, one hundred fifty-seven billion, seven hundred seventy-four million, four hundred sixty-five thousand, five hundred forty-five".