39940785703 has 16 divisors (see below), whose sum is σ = 49245267456. Its totient is φ = 31545329760.

The previous prime is 39940785649. The next prime is 39940785727. The reversal of 39940785703 is 30758704993.

It is a happy number.

It is not a de Polignac number, because 39940785703 - 2¹³ = 39940777511 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39940785103) 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, 338563 + ... + 441028.

It is an arithmetic number, because the mean of its divisors is an integer number (3077829216).

Almost surely, 2^39940785703 is an apocalyptic number.

39940785703 is a deficient number, since it is larger than the sum of its proper divisors (9304481753).

39940785703 is a wasteful number, since it uses less digits than its factorization.

39940785703 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 780174.

The product of its (nonzero) digits is 5715360, while the sum is 55.

The spelling of 39940785703 in words is "thirty-nine billion, nine hundred forty million, seven hundred eighty-five thousand, seven hundred three".