36915315840 has 1152 divisors, whose sum is σ = 154846036800. Its totient is φ = 8330895360.

The previous prime is 36915315823. The next prime is 36915315847. The reversal of 36915315840 is 4851351963.

36915315840 is a `hidden beast` number, since 3 + 69 + 1 + 5 + 3 + 1 + 584 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (1152).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36915315847) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 1190816625 + ... + 1190816655.

Almost surely, 2^36915315840 is an apocalyptic number.

36915315840 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 36915315840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77423018400).

36915315840 is an abundant number, since it is smaller than the sum of its proper divisors (117930720960).

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

36915315840 is a wasteful number, since it uses less digits than its factorization.

36915315840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128 (or 73 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 45.

The spelling of 36915315840 in words is "thirty-six billion, nine hundred fifteen million, three hundred fifteen thousand, eight hundred forty".