31427084118 has 32 divisors (see below), whose sum is σ = 63175353696. Its totient is φ = 10422263808.

The previous prime is 31427084107. The next prime is 31427084131. The reversal of 31427084118 is 81148072413.

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, 1303380 + ... + 1327272.

It is an arithmetic number, because the mean of its divisors is an integer number (1974229803).

Almost surely, 2^31427084118 is an apocalyptic number.

31427084118 is an abundant number, since it is smaller than the sum of its proper divisors (31748269578).

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

31427084118 is a wasteful number, since it uses less digits than its factorization.

31427084118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25008.

The product of its (nonzero) digits is 43008, while the sum is 39.

The spelling of 31427084118 in words is "thirty-one billion, four hundred twenty-seven million, eighty-four thousand, one hundred eighteen".