40187453847 has 16 divisors (see below), whose sum is σ = 54034485120. Its totient is φ = 26566499232.

The previous prime is 40187453827. The next prime is 40187453861. The reversal of 40187453847 is 74835478104.

It is not a de Polignac number, because 40187453847 - 2¹² = 40187449751 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40187453847.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40187453827) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 286593 + ... + 403125.

It is an arithmetic number, because the mean of its divisors is an integer number (3377155320).

Almost surely, 2^40187453847 is an apocalyptic number.

40187453847 is a deficient number, since it is larger than the sum of its proper divisors (13847031273).

40187453847 is a wasteful number, since it uses less digits than its factorization.

40187453847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117502.

The product of its (nonzero) digits is 3010560, while the sum is 51.

The spelling of 40187453847 in words is "forty billion, one hundred eighty-seven million, four hundred fifty-three thousand, eight hundred forty-seven".