840712607331 has 16 divisors (see below), whose sum is σ = 1133095238400. Its totient is φ = 554435085600.

The previous prime is 840712607327. The next prime is 840712607347. The reversal of 840712607331 is 133706217048.

840712607331 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 840712607331 - 2² = 840712607327 is a prime.

It is a super-2 number, since 2×840712607331² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (840712607531) 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, 3966745 + ... + 4173306.

It is an arithmetic number, because the mean of its divisors is an integer number (70818452400).

Almost surely, 2^840712607331 is an apocalyptic number.

840712607331 is a deficient number, since it is larger than the sum of its proper divisors (292382631069).

840712607331 is a wasteful number, since it uses less digits than its factorization.

840712607331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8140426.

The product of its (nonzero) digits is 169344, while the sum is 42.

The spelling of 840712607331 in words is "eight hundred forty billion, seven hundred twelve million, six hundred seven thousand, three hundred thirty-one".