8145361854 has 24 divisors (see below), whose sum is σ = 20169467760. Its totient is φ = 2327246208.

The previous prime is 8145361799. The next prime is 8145361859. The reversal of 8145361854 is 4581635418.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8145361859) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32322739 + ... + 32322990.

It is an arithmetic number, because the mean of its divisors is an integer number (840394490).

Almost surely, 2^8145361854 is an apocalyptic number.

8145361854 is an abundant number, since it is smaller than the sum of its proper divisors (12024105906).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8145361854 is a wasteful number, since it uses less digits than its factorization.

8145361854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64645744 (or 64645741 counting only the distinct ones).

The product of its digits is 460800, while the sum is 45.

The square root of 8145361854 is about 90251.6584556760. The cubic root of 8145361854 is about 2012.0408513076.

The spelling of 8145361854 in words is "eight billion, one hundred forty-five million, three hundred sixty-one thousand, eight hundred fifty-four".