645038915414 has 8 divisors (see below), whose sum is σ = 970045670880. Its totient is φ = 321690358456.

The previous prime is 645038915401. The next prime is 645038915441. The reversal of 645038915414 is 414519830546.

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

It is a congruent number.

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, 414548654 + ... + 414550209.

It is an arithmetic number, because the mean of its divisors is an integer number (121255708860).

Almost surely, 2^645038915414 is an apocalyptic number.

645038915414 is a deficient number, since it is larger than the sum of its proper divisors (325006755466).

645038915414 is a wasteful number, since it uses less digits than its factorization.

645038915414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 829099254.

The product of its (nonzero) digits is 2073600, while the sum is 50.

The spelling of 645038915414 in words is "six hundred forty-five billion, thirty-eight million, nine hundred fifteen thousand, four hundred fourteen".