31939940711950 has 12 divisors (see below), whose sum is σ = 59408289724320. Its totient is φ = 12775976284760.

The previous prime is 31939940711947. The next prime is 31939940711953. The reversal of 31939940711950 is 5911704993913.

It is an interprime number because it is at equal distance from previous prime (31939940711947) and next prime (31939940711953).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31939940711953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 319399407070 + ... + 319399407169.

It is an arithmetic number, because the mean of its divisors is an integer number (4950690810360).

Almost surely, 2^{31939940711950} is an apocalyptic number.

31939940711950 is a deficient number, since it is larger than the sum of its proper divisors (27468349012370).

31939940711950 is a wasteful number, since it uses less digits than its factorization.

31939940711950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 638798814251 (or 638798814246 counting only the distinct ones).

The product of its (nonzero) digits is 8266860, while the sum is 61.

The spelling of 31939940711950 in words is "thirty-one trillion, nine hundred thirty-nine billion, nine hundred forty million, seven hundred eleven thousand, nine hundred fifty".