40231664819 has 8 divisors (see below), whose sum is σ = 40707085440. Its totient is φ = 39758878656.

The previous prime is 40231664813. The next prime is 40231664827. The reversal of 40231664819 is 91846613204.

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

It is a cyclic number.

It is not a de Polignac number, because 40231664819 - 2¹² = 40231660723 is a prime.

It is a super-2 number, since 2×40231664819² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40231664819.

It is not an unprimeable number, because it can be changed into a prime (40231664813) 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, 627884 + ... + 688985.

It is an arithmetic number, because the mean of its divisors is an integer number (5088385680).

Almost surely, 2^40231664819 is an apocalyptic number.

40231664819 is a deficient number, since it is larger than the sum of its proper divisors (475420621).

40231664819 is a wasteful number, since it uses less digits than its factorization.

40231664819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1317229.

The product of its (nonzero) digits is 248832, while the sum is 44.

The spelling of 40231664819 in words is "forty billion, two hundred thirty-one million, six hundred sixty-four thousand, eight hundred nineteen".