684714732538 has 16 divisors (see below), whose sum is σ = 1082292336000. Its totient is φ = 323989414272.

The previous prime is 684714732511. The next prime is 684714732539. The reversal of 684714732538 is 835237417486.

It is not an unprimeable number, because it can be changed into a prime (684714732539) 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, 9662658 + ... + 9733261.

It is an arithmetic number, because the mean of its divisors is an integer number (67643271000).

Almost surely, 2^684714732538 is an apocalyptic number.

684714732538 is a deficient number, since it is larger than the sum of its proper divisors (397577603462).

684714732538 is a wasteful number, since it uses less digits than its factorization.

684714732538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19396869.

The product of its digits is 27095040, while the sum is 58.

The spelling of 684714732538 in words is "six hundred eighty-four billion, seven hundred fourteen million, seven hundred thirty-two thousand, five hundred thirty-eight".