40187832819 has 8 divisors (see below), whose sum is σ = 53670344640. Its totient is φ = 26748604776.

The previous prime is 40187832803. The next prime is 40187832821. The reversal of 40187832819 is 91823878104.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40187832819 - 2⁴ = 40187832803 is a prime.

It is a super-2 number, since 2×40187832819² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40187832829) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10818777 + ... + 10822490.

It is an arithmetic number, because the mean of its divisors is an integer number (6708793080).

Almost surely, 2^40187832819 is an apocalyptic number.

40187832819 is a deficient number, since it is larger than the sum of its proper divisors (13482511821).

40187832819 is a wasteful number, since it uses less digits than its factorization.

40187832819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21641889.

The product of its (nonzero) digits is 774144, while the sum is 51.

The spelling of 40187832819 in words is "forty billion, one hundred eighty-seven million, eight hundred thirty-two thousand, eight hundred nineteen".