720648542986 has 4 divisors (see below), whose sum is σ = 1080972814482. Its totient is φ = 360324271492.

The previous prime is 720648542941. The next prime is 720648543019. The reversal of 720648542986 is 689245846027.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 636588558225 + 84059984761 = 797865^2 + 289931^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 180162135745 + ... + 180162135748.

Almost surely, 2^720648542986 is an apocalyptic number.

720648542986 is a deficient number, since it is larger than the sum of its proper divisors (360324271496).

720648542986 is a wasteful number, since it uses less digits than its factorization.

720648542986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360324271495.

The product of its (nonzero) digits is 46448640, while the sum is 61.

The spelling of 720648542986 in words is "seven hundred twenty billion, six hundred forty-eight million, five hundred forty-two thousand, nine hundred eighty-six".