940865392971 has 96 divisors (see below), whose sum is σ = 1661817597440. Its totient is φ = 500999219712.

The previous prime is 940865392949. The next prime is 940865392979. The reversal of 940865392971 is 179293568049.

940865392971 is a `hidden beast` number, since 9 + 4 + 0 + 8 + 6 + 539 + 2 + 97 + 1 = 666.

It is not a de Polignac number, because 940865392971 - 2¹¹ = 940865390923 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a junction number, because it is equal to n+sod(n) for n = 940865392899 and 940865392908.

It is not an unprimeable number, because it can be changed into a prime (940865392979) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 32578680 + ... + 32607546.

It is a 1-persistent number, because it is pandigital, but 2⋅940865392971 = 1881730785942 is not.

Almost surely, 2^940865392971 is an apocalyptic number.

940865392971 is a deficient number, since it is larger than the sum of its proper divisors (720952204469).

940865392971 is a wasteful number, since it uses less digits than its factorization.

940865392971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29345 (or 29342 counting only the distinct ones).

The product of its (nonzero) digits is 29393280, while the sum is 63.

The spelling of 940865392971 in words is "nine hundred forty billion, eight hundred sixty-five million, three hundred ninety-two thousand, nine hundred seventy-one".