734778124864 has 63 divisors (see below), whose sum is σ = 1696239273123. Its totient is φ = 314884338048.

The previous prime is 734778124841. The next prime is 734778124879. The reversal of 734778124864 is 468421877437.

The square root of 734778124864 is 857192.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 47995099 + ... + 48010405.

Almost surely, 2^734778124864 is an apocalyptic number.

734778124864 is the 857192-nd square number.

It is an amenable number.

734778124864 is an abundant number, since it is smaller than the sum of its proper divisors (961461148259).

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

734778124864 is an frugal number, since it uses more digits than its factorization.

734778124864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30640 (or 15316 counting only the distinct ones).

The product of its digits is 50577408, while the sum is 61.

The spelling of 734778124864 in words is "seven hundred thirty-four billion, seven hundred seventy-eight million, one hundred twenty-four thousand, eight hundred sixty-four".