315742246646 has 16 divisors (see below), whose sum is σ = 486026736048. Its totient is φ = 153747014400.

The previous prime is 315742246643. The next prime is 315742246657. The reversal of 315742246646 is 646642247513.

It is a junction number, because it is equal to n+sod(n) for n = 315742246594 and 315742246603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315742246643) 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, 3373475 + ... + 3465806.

It is an arithmetic number, because the mean of its divisors is an integer number (30376671003).

Almost surely, 2^315742246646 is an apocalyptic number.

315742246646 is a deficient number, since it is larger than the sum of its proper divisors (170284489402).

315742246646 is a wasteful number, since it uses less digits than its factorization.

315742246646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6839887.

The product of its digits is 5806080, while the sum is 50.

The spelling of 315742246646 in words is "three hundred fifteen billion, seven hundred forty-two million, two hundred forty-six thousand, six hundred forty-six".