140285947917 has 16 divisors (see below), whose sum is σ = 196926621120. Its totient is φ = 88586323200.

The previous prime is 140285947873. The next prime is 140285947981. The reversal of 140285947917 is 719749582041.

It is not a de Polignac number, because 140285947917 - 2¹² = 140285943821 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140285947517) 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, 124117 + ... + 544037.

It is an arithmetic number, because the mean of its divisors is an integer number (12307913820).

Almost surely, 2^140285947917 is an apocalyptic number.

It is an amenable number.

140285947917 is a deficient number, since it is larger than the sum of its proper divisors (56640673203).

140285947917 is a wasteful number, since it uses less digits than its factorization.

140285947917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425804.

The product of its (nonzero) digits is 5080320, while the sum is 57.

The spelling of 140285947917 in words is "one hundred forty billion, two hundred eighty-five million, nine hundred forty-seven thousand, nine hundred seventeen".