3123213654064 has 80 divisors (see below), whose sum is σ = 6938654310400. Its totient is φ = 1334080357632.

The previous prime is 3123213654061. The next prime is 3123213654073. The reversal of 3123213654064 is 4604563123213.

It is not an unprimeable number, because it can be changed into a prime (3123213654061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56841997 + ... + 56896915.

It is an arithmetic number, because the mean of its divisors is an integer number (86733178880).

Almost surely, 2^{3123213654064} is an apocalyptic number.

It is an amenable number.

3123213654064 is an abundant number, since it is smaller than the sum of its proper divisors (3815440656336).

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

3123213654064 is a wasteful number, since it uses less digits than its factorization.

3123213654064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56610 (or 56604 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 40.

Adding to 3123213654064 its reverse (4604563123213), we get a palindrome (7727776777277).

The spelling of 3123213654064 in words is "three trillion, one hundred twenty-three billion, two hundred thirteen million, six hundred fifty-four thousand, sixty-four".