8157415447641 has 16 divisors (see below), whose sum is σ = 11586943952640. Its totient is φ = 5089978944720.

The previous prime is 8157415447639. The next prime is 8157415447651. The reversal of 8157415447641 is 1467445147518.

It is not a de Polignac number, because 8157415447641 - 2¹ = 8157415447639 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is not an unprimeable number, because it can be changed into a prime (8157415447651) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 862119075 + ... + 862128536.

It is an arithmetic number, because the mean of its divisors is an integer number (724183997040).

Almost surely, 2^{8157415447641} is an apocalyptic number.

It is an amenable number.

8157415447641 is a deficient number, since it is larger than the sum of its proper divisors (3429528504999).

8157415447641 is a wasteful number, since it uses less digits than its factorization.

8157415447641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1724247716.

The product of its digits is 15052800, while the sum is 57.

The spelling of 8157415447641 in words is "eight trillion, one hundred fifty-seven billion, four hundred fifteen million, four hundred forty-seven thousand, six hundred forty-one".