787380249841 has 16 divisors (see below), whose sum is σ = 813912609744. Its totient is φ = 761138740224.

The previous prime is 787380249823. The next prime is 787380249847. The reversal of 787380249841 is 148942083787.

787380249841 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 191235663025 + 596144586816 = 437305^2 + 772104^2 .

It is a cyclic number.

It is not a de Polignac number, because 787380249841 - 2⁷ = 787380249713 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 787380249841.

It is not an unprimeable number, because it can be changed into a prime (787380249847) 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, 3839871 + ... + 4039723.

It is an arithmetic number, because the mean of its divisors is an integer number (50869538109).

Almost surely, 2^787380249841 is an apocalyptic number.

It is an amenable number.

787380249841 is a deficient number, since it is larger than the sum of its proper divisors (26532359903).

787380249841 is a wasteful number, since it uses less digits than its factorization.

787380249841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200580.

The product of its (nonzero) digits is 21676032, while the sum is 61.

The spelling of 787380249841 in words is "seven hundred eighty-seven billion, three hundred eighty million, two hundred forty-nine thousand, eight hundred forty-one".