31427270707 has 4 divisors (see below), whose sum is σ = 35916880816. Its totient is φ = 26937660600.

The previous prime is 31427270629. The next prime is 31427270717. The reversal of 31427270707 is 70707272413.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 31427270707 - 2³¹ = 29279787059 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31427270707.

It is not an unprimeable number, because it can be changed into a prime (31427270717) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2244805044 + ... + 2244805057.

It is an arithmetic number, because the mean of its divisors is an integer number (8979220204).

Almost surely, 2^31427270707 is an apocalyptic number.

31427270707 is a deficient number, since it is larger than the sum of its proper divisors (4489610109).

31427270707 is an equidigital number, since it uses as much as digits as its factorization.

31427270707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4489610108.

The product of its (nonzero) digits is 115248, while the sum is 40.

The spelling of 31427270707 in words is "thirty-one billion, four hundred twenty-seven million, two hundred seventy thousand, seven hundred seven".