718965357540 has 24 divisors (see below), whose sum is σ = 2013103001280. Its totient is φ = 191724095328.

The previous prime is 718965357529. The next prime is 718965357623. The reversal of 718965357540 is 45753569817.

It is a super-2 number, since 2×718965357540² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (60), and also a Moran number because the ratio is a prime number: 11982755959 = 718965357540 / (7 + 1 + 8 + 9 + 6 + 5 + 3 + 5 + 7 + 5 + 4 + 0).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5991377920 + ... + 5991378039.

It is an arithmetic number, because the mean of its divisors is an integer number (83879291720).

Almost surely, 2^718965357540 is an apocalyptic number.

It is an amenable number.

718965357540 is an abundant number, since it is smaller than the sum of its proper divisors (1294137643740).

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

718965357540 is a wasteful number, since it uses less digits than its factorization.

718965357540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11982755971 (or 11982755969 counting only the distinct ones).

The product of its (nonzero) digits is 31752000, while the sum is 60.

The spelling of 718965357540 in words is "seven hundred eighteen billion, nine hundred sixty-five million, three hundred fifty-seven thousand, five hundred forty".