31428717146 has 8 divisors (see below), whose sum is σ = 47317036224. Its totient is φ = 15656371740.

The previous prime is 31428717041. The next prime is 31428717179. The reversal of 31428717146 is 64171782413.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×31428717146² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31428717097 and 31428717106.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28992740 + ... + 28993823.

It is an arithmetic number, because the mean of its divisors is an integer number (5914629528).

Almost surely, 2^31428717146 is an apocalyptic number.

31428717146 is a deficient number, since it is larger than the sum of its proper divisors (15888319078).

31428717146 is a wasteful number, since it uses less digits than its factorization.

31428717146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57986836.

The product of its digits is 225792, while the sum is 44.

The spelling of 31428717146 in words is "thirty-one billion, four hundred twenty-eight million, seven hundred seventeen thousand, one hundred forty-six".