723290967880 has 128 divisors (see below), whose sum is σ = 1774347482880. Its totient is φ = 263766297600.

The previous prime is 723290967871. The next prime is 723290967899. The reversal of 723290967880 is 88769092327.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13607355 + ... + 13660405.

It is an arithmetic number, because the mean of its divisors is an integer number (13862089710).

Almost surely, 2^723290967880 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 723290967880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (887173741440).

723290967880 is an abundant number, since it is smaller than the sum of its proper divisors (1051056515000).

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

723290967880 is a wasteful number, since it uses less digits than its factorization.

723290967880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53399 (or 53395 counting only the distinct ones).

The product of its (nonzero) digits is 18289152, while the sum is 61.

The spelling of 723290967880 in words is "seven hundred twenty-three billion, two hundred ninety million, nine hundred sixty-seven thousand, eight hundred eighty".