687385237034 has 16 divisors (see below), whose sum is σ = 1041349001472. Its totient is φ = 340270574448.

The previous prime is 687385236991. The next prime is 687385237037. The reversal of 687385237034 is 430732583786.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (687385237037) 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, 410927 + ... + 1242429.

It is an arithmetic number, because the mean of its divisors is an integer number (65084312592).

Almost surely, 2^687385237034 is an apocalyptic number.

687385237034 is a deficient number, since it is larger than the sum of its proper divisors (353963764438).

687385237034 is a wasteful number, since it uses less digits than its factorization.

687385237034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 835621.

The product of its (nonzero) digits is 20321280, while the sum is 56.

The spelling of 687385237034 in words is "six hundred eighty-seven billion, three hundred eighty-five million, two hundred thirty-seven thousand, thirty-four".