700549781968 has 80 divisors (see below), whose sum is σ = 1485971391744. Its totient is φ = 318623313920.

The previous prime is 700549781963. The next prime is 700549782013. The reversal of 700549781968 is 869187945007.

It is a Smith number, since the sum of its digits (64) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (700549781963) 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, 899721 + ... + 1486807.

Almost surely, 2^700549781968 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 700549781968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (742985695872).

700549781968 is an abundant number, since it is smaller than the sum of its proper divisors (785421609776).

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

700549781968 is a wasteful number, since it uses less digits than its factorization.

700549781968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 587260 (or 587254 counting only the distinct ones).

The product of its (nonzero) digits is 30481920, while the sum is 64.

The spelling of 700549781968 in words is "seven hundred billion, five hundred forty-nine million, seven hundred eighty-one thousand, nine hundred sixty-eight".