40253653386 has 96 divisors (see below), whose sum is σ = 90453407616. Its totient is φ = 12927600000.

The previous prime is 40253653367. The next prime is 40253653387. The reversal of 40253653386 is 68335635204.

40253653386 is a `hidden beast` number, since 4 + 0 + 2 + 5 + 36 + 533 + 86 = 666.

It is a super-2 number, since 2×40253653386² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40253653387) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 57422836 + ... + 57423536.

It is an arithmetic number, because the mean of its divisors is an integer number (942222996).

Almost surely, 2^40253653386 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40253653386, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45226703808).

40253653386 is an abundant number, since it is smaller than the sum of its proper divisors (50199754230).

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

40253653386 is a wasteful number, since it uses less digits than its factorization.

40253653386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1468 (or 1465 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 45.

The spelling of 40253653386 in words is "forty billion, two hundred fifty-three million, six hundred fifty-three thousand, three hundred eighty-six".