787402449693 has 48 divisors (see below), whose sum is σ = 1185611618880. Its totient is φ = 503143446528.

The previous prime is 787402449649. The next prime is 787402449697. The reversal of 787402449693 is 396944204787.

787402449693 is a `hidden beast` number, since 7 + 87 + 40 + 24 + 496 + 9 + 3 = 666.

It is not a de Polignac number, because 787402449693 - 2¹⁰ = 787402448669 is a prime.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 787402449693.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (787402449697) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6316221 + ... + 6439677.

It is an arithmetic number, because the mean of its divisors is an integer number (24700242060).

Almost surely, 2^787402449693 is an apocalyptic number.

It is an amenable number.

787402449693 is a deficient number, since it is larger than the sum of its proper divisors (398209169187).

787402449693 is a wasteful number, since it uses less digits than its factorization.

787402449693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123786 (or 123783 counting only the distinct ones).

The product of its (nonzero) digits is 73156608, while the sum is 63.

The spelling of 787402449693 in words is "seven hundred eighty-seven billion, four hundred two million, four hundred forty-nine thousand, six hundred ninety-three".