680901532838 has 4 divisors (see below), whose sum is σ = 1021352299260. Its totient is φ = 340450766418.

The previous prime is 680901532837. The next prime is 680901532841. The reversal of 680901532838 is 838235109086.

680901532838 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 is a super-2 number, since 2×680901532838² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 680901532838.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680901532837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170225383208 + ... + 170225383211.

It is an arithmetic number, because the mean of its divisors is an integer number (255338074815).

Almost surely, 2^680901532838 is an apocalyptic number.

680901532838 is a deficient number, since it is larger than the sum of its proper divisors (340450766422).

680901532838 is a wasteful number, since it uses less digits than its factorization.

680901532838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340450766421.

The product of its (nonzero) digits is 2488320, while the sum is 53.

The spelling of 680901532838 in words is "six hundred eighty billion, nine hundred one million, five hundred thirty-two thousand, eight hundred thirty-eight".