36390612258 has 768 divisors, whose sum is σ = 120229724160. Its totient is φ = 7936185600.

The previous prime is 36390612229. The next prime is 36390612263. The reversal of 36390612258 is 85221609363.

36390612258 is a `hidden beast` number, since 3 + 6 + 3 + 9 + 0 + 612 + 25 + 8 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 286540191 + ... + 286540317.

It is an arithmetic number, because the mean of its divisors is an integer number (156549120).

Almost surely, 2^36390612258 is an apocalyptic number.

36390612258 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 36390612258, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60114862080).

36390612258 is an abundant number, since it is smaller than the sum of its proper divisors (83839111902).

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

36390612258 is a wasteful number, since it uses less digits than its factorization.

36390612258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225 (or 213 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 45.

The spelling of 36390612258 in words is "thirty-six billion, three hundred ninety million, six hundred twelve thousand, two hundred fifty-eight".