720639741464 has 8 divisors (see below), whose sum is σ = 1351199515260. Its totient is φ = 360319870728.

The previous prime is 720639741457. The next prime is 720639741467. The reversal of 720639741464 is 464147936027.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (720639741467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45039983834 + ... + 45039983849.

Almost surely, 2^720639741464 is an apocalyptic number.

It is an amenable number.

720639741464 is a deficient number, since it is larger than the sum of its proper divisors (630559773796).

720639741464 is a wasteful number, since it uses less digits than its factorization.

720639741464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90079967689 (or 90079967685 counting only the distinct ones).

The product of its (nonzero) digits is 6096384, while the sum is 53.

The spelling of 720639741464 in words is "seven hundred twenty billion, six hundred thirty-nine million, seven hundred forty-one thousand, four hundred sixty-four".