940246478857 has 16 divisors (see below), whose sum is σ = 1098064461312. Its totient is φ = 788322571200.

The previous prime is 940246478833. The next prime is 940246478911. The reversal of 940246478857 is 758874642049.

It is a cyclic number.

It is not a de Polignac number, because 940246478857 - 2³¹ = 938098995209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (940246478357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 254394 + ... + 1394707.

It is an arithmetic number, because the mean of its divisors is an integer number (68629028832).

Almost surely, 2^940246478857 is an apocalyptic number.

It is an amenable number.

940246478857 is a deficient number, since it is larger than the sum of its proper divisors (157817982455).

940246478857 is a wasteful number, since it uses less digits than its factorization.

940246478857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1650888.

The product of its (nonzero) digits is 108380160, while the sum is 64.

The spelling of 940246478857 in words is "nine hundred forty billion, two hundred forty-six million, four hundred seventy-eight thousand, eight hundred fifty-seven".