787642746073 has 4 divisors (see below), whose sum is σ = 788683226020. Its totient is φ = 786602266128.

The previous prime is 787642746041. The next prime is 787642746109. The reversal of 787642746073 is 370647246787.

787642746073 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 683909152144 + 103733593929 = 826988^2 + 322077^2 .

It is a cyclic number.

It is not a de Polignac number, because 787642746073 - 2⁵ = 787642746041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (787642746973) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 520238838 + ... + 520240351.

It is an arithmetic number, because the mean of its divisors is an integer number (197170806505).

Almost surely, 2^787642746073 is an apocalyptic number.

It is an amenable number.

787642746073 is a deficient number, since it is larger than the sum of its proper divisors (1040479947).

787642746073 is a wasteful number, since it uses less digits than its factorization.

787642746073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1040479946.

The product of its (nonzero) digits is 66382848, while the sum is 61.

The spelling of 787642746073 in words is "seven hundred eighty-seven billion, six hundred forty-two million, seven hundred forty-six thousand, seventy-three".