31429909666790 has 32 divisors (see below), whose sum is σ = 58600764684000. Its totient is φ = 12122663067648.

The previous prime is 31429909666717. The next prime is 31429909666801. The reversal of 31429909666790 is 9766690992413.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70244480 + ... + 70690499.

It is an arithmetic number, because the mean of its divisors is an integer number (1831273896375).

Almost surely, 2^{31429909666790} is an apocalyptic number.

31429909666790 is a deficient number, since it is larger than the sum of its proper divisors (27170855017210).

31429909666790 is a wasteful number, since it uses less digits than its factorization.

31429909666790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140935784.

The product of its (nonzero) digits is 238085568, while the sum is 71.

The spelling of 31429909666790 in words is "thirty-one trillion, four hundred twenty-nine billion, nine hundred nine million, six hundred sixty-six thousand, seven hundred ninety".