36181591548 has 48 divisors (see below), whose sum is σ = 92730865920. Its totient is φ = 10928991744.

The previous prime is 36181591547. The next prime is 36181591549. The reversal of 36181591548 is 84519518163.

It is an interprime number because it is at equal distance from previous prime (36181591547) and next prime (36181591549).

It is a self number, because there is not a number n which added to its sum of digits gives 36181591548.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36181591543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3444565 + ... + 3455052.

It is an arithmetic number, because the mean of its divisors is an integer number (1931893040).

Almost surely, 2^36181591548 is an apocalyptic number.

36181591548 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

36181591548 is an abundant number, since it is smaller than the sum of its proper divisors (56549274372).

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

36181591548 is a wasteful number, since it uses less digits than its factorization.

36181591548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6899666 (or 6899664 counting only the distinct ones).

The product of its digits is 1036800, while the sum is 51.

The spelling of 36181591548 in words is "thirty-six billion, one hundred eighty-one million, five hundred ninety-one thousand, five hundred forty-eight".