679888401111 has 8 divisors (see below), whose sum is σ = 1007242075760. Its totient is φ = 453258934056.

The previous prime is 679888401109. The next prime is 679888401113. The reversal of 679888401111 is 111104888976.

679888401111 is a `hidden beast` number, since 67 + 98 + 88 + 401 + 1 + 11 = 666.

679888401111 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (679888401109) and next prime (679888401113).

It is not a de Polignac number, because 679888401111 - 2¹ = 679888401109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (679888401113) 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, 12590525920 + ... + 12590525973.

It is an arithmetic number, because the mean of its divisors is an integer number (125905259470).

Almost surely, 2^679888401111 is an apocalyptic number.

679888401111 is a deficient number, since it is larger than the sum of its proper divisors (327353674649).

679888401111 is a wasteful number, since it uses less digits than its factorization.

679888401111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25181051902 (or 25181051896 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 54.

The spelling of 679888401111 in words is "six hundred seventy-nine billion, eight hundred eighty-eight million, four hundred one thousand, one hundred eleven".