31426205115660 has 24 divisors (see below), whose sum is σ = 87993374324016. Its totient is φ = 8380321364160.

The previous prime is 31426205115563. The next prime is 31426205115661. The reversal of 31426205115660 is 6651150262413.

It is not an unprimeable number, because it can be changed into a prime (31426205115661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 261885042571 + ... + 261885042690.

It is an arithmetic number, because the mean of its divisors is an integer number (3666390596834).

Almost surely, 2^{31426205115660} is an apocalyptic number.

31426205115660 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31426205115660 is an abundant number, since it is smaller than the sum of its proper divisors (56567169208356).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31426205115660 is a wasteful number, since it uses less digits than its factorization.

31426205115660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 523770085273 (or 523770085271 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 42.

The spelling of 31426205115660 in words is "thirty-one trillion, four hundred twenty-six billion, two hundred five million, one hundred fifteen thousand, six hundred sixty".