787955056513 has 8 divisors (see below), whose sum is σ = 796233548520. Its totient is φ = 779685916800.

The previous prime is 787955056507. The next prime is 787955056517. The reversal of 787955056513 is 315650559787.

It can be written as a sum of positive squares in 4 ways, for example, as 119766521329 + 668188535184 = 346073^2 + 817428^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 787955056513 - 2⁹ = 787955056001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (787955056517) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2168620 + ... + 2505757.

It is an arithmetic number, because the mean of its divisors is an integer number (99529193565).

Almost surely, 2^787955056513 is an apocalyptic number.

It is an amenable number.

787955056513 is a deficient number, since it is larger than the sum of its proper divisors (8278492007).

787955056513 is a wasteful number, since it uses less digits than its factorization.

787955056513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4676147.

The product of its (nonzero) digits is 39690000, while the sum is 61.

The spelling of 787955056513 in words is "seven hundred eighty-seven billion, nine hundred fifty-five million, fifty-six thousand, five hundred thirteen".